<?xml version="1.0" encoding="UTF-8" ?>
<link:linkbase
xmlns:Vanguard="http://vanguard/20100727"
xmlns:link="http://www.xbrl.org/2003/linkbase"
xmlns:us-types="http://xbrl.us/us-types/2009-01-31"
xmlns:xbrldt="http://xbrl.org/2005/xbrldt"
xmlns:rr="http://xbrl.sec.gov/rr/2010-02-28"
xmlns:dei="http://xbrl.us/dei/2009-01-31"
xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xbrli="http://www.xbrl.org/2003/instance"
xmlns:iso4217="http://www.xbrl.org/2003/iso4217"
xmlns:xlink="http://www.w3.org/1999/xlink"
xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
<link:roleRef
roleURI="http://xbrl.sec.gov/rr/role/Defaults"
xlink:type="simple"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#Defaults"/>
<link:roleRef
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#OperatingExpensesData"
xlink:type="simple"
roleURI="http://xbrl.sec.gov/rr/role/OperatingExpensesData"/>
<link:roleRef
roleURI="http://xbrl.sec.gov/rr/role/RiskReturn"
xlink:type="simple"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#RiskReturn"/>
<link:roleRef
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#BarChartData"
xlink:type="simple"
roleURI="http://xbrl.sec.gov/rr/role/BarChartData"/>
<link:roleRef
roleURI="http://xbrl.sec.gov/rr/role/PerformanceTableData"
xlink:type="simple"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#PerformanceTableData"/>
<link:roleRef
roleURI="http://xbrl.sec.gov/rr/role/PerformanceMeasure"
xlink:type="simple"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#PerformanceMeasureOnly"/>
<link:roleRef
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#ShareholderFeesData"
xlink:type="simple"
roleURI="http://xbrl.sec.gov/rr/role/ShareholderFeesData"/>
<link:roleRef
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#ProspectusOnly"
xlink:type="simple"
roleURI="http://xbrl.sec.gov/rr/role/Prospectus"/>
<link:roleRef
roleURI="http://xbrl.sec.gov/rr/role/Class"
xlink:type="simple"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#ClassOnly"/>
<link:roleRef
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#SeriesOnly"
xlink:type="simple"
roleURI="http://xbrl.sec.gov/rr/role/Series"/>
<link:roleRef
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#RiskReturnDetailData"
xlink:type="simple"
roleURI="http://xbrl.sec.gov/rr/role/RiskReturnDetailData"/>
<link:roleRef
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#ExpenseExample"
xlink:type="simple"
roleURI="http://xbrl.sec.gov/rr/role/ExpenseExample"/>
<link:roleRef
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#ExpenseExampleNoRedemption"
xlink:type="simple"
roleURI="http://xbrl.sec.gov/rr/role/ExpenseExampleNoRedemption"/>
<link:roleRef
roleURI="http://vanguard/role/Supplement"
xlink:type="simple"
xlink:href="chester-20130128.xsd#Supplement"/>
<link:roleRef
xlink:href="http://www.xbrl.org/lrr/role/negated-2008-03-31.xsd#negated"
xlink:type="simple"
roleURI="http://xbrl.us/us-gaap/role/label/negated"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002568Participant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002568Participant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002568Participant2"
xlink:type="simple"
roleURI="http://vanguard/role/S000002568Participant2"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002568Retail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002568Retail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012758Participant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012758Participant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012758Retail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012758Retail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002571Participant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002571Participant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002571Retail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002571Retail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012759Participant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012759Participant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012759Retail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012759Retail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002572Participant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002572Participant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002572Retail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002572Retail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012760Participant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012760Participant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012760Retail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012760Retail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002573Participant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002573Participant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002573Retail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002573Retail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012761Participant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012761Participant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012761Retail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012761Retail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002574Participant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002574Participant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002574Retail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002574Retail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012762Participant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012762Participant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012762Retail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012762Retail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000029700Participant"
xlink:type="simple"
roleURI="http://vanguard/role/S000029700Participant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000029700Retail"
xlink:type="simple"
roleURI="http://vanguard/role/S000029700Retail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000035453Participant"
xlink:type="simple"
roleURI="http://vanguard/role/S000035453Participant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000035453Retail"
xlink:type="simple"
roleURI="http://vanguard/role/S000035453Retail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002569Participant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002569Participant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002569Retail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002569Retail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002569OperatingExpensesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002569OperatingExpensesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002569ShareholderFeesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002569ShareholderFeesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002569ExpenseExampleNoRedemptionRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002569ExpenseExampleNoRedemptionRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002569PerformanceRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002569PerformanceTableDataRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012758OperatingExpensesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012758OperatingExpensesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012758ExpenseExampleNoRedemptionRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012758ExpenseExampleNoRedemptionRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012758ShareholderFeesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012758ShareholderFeesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012758PerformanceRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012758PerformanceTableDataRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002571PerformanceRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002571PerformanceTableDataRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002571OperatingExpensesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002571OperatingExpensesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002571ShareholderFeesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002571ShareholderFeesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002571ExpenseExampleNoRedemptionRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002571ExpenseExampleNoRedemptionRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012759PerformanceRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012759PerformanceTableDataRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012759ShareholderFeesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012759ShareholderFeesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012759OperatingExpensesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012759OperatingExpensesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012759ExpenseExampleNoRedemptionRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012759ExpenseExampleNoRedemptionRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002572PerformanceRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002572PerformanceTableDataRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012760ShareholderFeesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012760ShareholderFeesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012760OperatingExpensesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012760OperatingExpensesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002572ExpenseExampleNoRedemptionRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002572ExpenseExampleNoRedemptionRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012760PerformanceRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012760PerformanceTableDataRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002573ShareholderFeesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002573ShareholderFeesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002573OperatingExpensesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002573OperatingExpensesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012760ExpenseExampleNoRedemptionRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012760ExpenseExampleNoRedemptionRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012761ExpenseExampleNoRedemptionRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012761ExpenseExampleNoRedemptionRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012761OperatingExpensesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012761OperatingExpensesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012761ShareholderFeesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012761ShareholderFeesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012761PerformanceRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012761PerformanceTableDataRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002573ExpenseExampleNoRedemptionRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002573ExpenseExampleNoRedemptionRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002572ShareholderFeesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002572ShareholderFeesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002572OperatingExpensesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002572OperatingExpensesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002573PerformanceRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002573PerformanceTableDataRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002574PerformanceRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002574PerformanceTableDataRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002574ExpenseExampleNoRedemptionRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002574ExpenseExampleNoRedemptionRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012762PerformanceRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012762PerformanceTableDataRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000029700ShareholderFeesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000029700ShareholderFeesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012762ExpenseExampleNoRedemptionRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012762ExpenseExampleNoRedemptionRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012762ShareholderFeesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012762ShareholderFeesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012762OperatingExpensesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012762OperatingExpensesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000035453OperatingExpensesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000035453OperatingExpensesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000035453ShareholderFeesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000035453ShareholderFeesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000035453ExpenseExampleNoRedemptionRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000035453ExpenseExampleNoRedemptionRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000029700PerformanceRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000029700PerformanceTableDataRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000029700OperatingExpensesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000029700OperatingExpensesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000029700ExpenseExampleNoRedemptionRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000029700ExpenseExampleNoRedemptionRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002574ShareholderFeesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002574ShareholderFeesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002574OperatingExpensesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002574OperatingExpensesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002571ShareholderFeesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002571ShareholderFeesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002569ExpenseExampleNoRedemptionParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002569ExpenseExampleNoRedemptionParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002569OperatingExpensesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002569OperatingExpensesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012758PerformanceParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012758PerformanceTableDataParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012758ShareholderFeesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012758ShareholderFeesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012758OperatingExpensesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012758OperatingExpensesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002569PerformanceParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002569PerformanceTableDataParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012758ExpenseExampleNoRedemptionParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012758ExpenseExampleNoRedemptionParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012759OperatingExpensesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012759OperatingExpensesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012759PerformanceParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012759PerformanceTableDataParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012759ShareholderFeesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012759ShareholderFeesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002571PerformanceParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002571PerformanceTableDataParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012759ExpenseExampleNoRedemptionParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012759ExpenseExampleNoRedemptionParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002571OperatingExpensesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002571OperatingExpensesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002571ExpenseExampleNoRedemptionParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002571ExpenseExampleNoRedemptionParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002569ShareholderFeesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002569ShareholderFeesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012761OperatingExpensesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012761OperatingExpensesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012761ShareholderFeesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012761ShareholderFeesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012761ExpenseExampleNoRedemptionParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012761ExpenseExampleNoRedemptionParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002574ShareholderFeesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002574ShareholderFeesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002574OperatingExpensesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002574OperatingExpensesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002573PerformanceParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002573PerformanceTableDataParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012761PerformanceParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012761PerformanceTableDataParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012762ExpenseExampleNoRedemptionParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012762ExpenseExampleNoRedemptionParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012762PerformanceParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012762PerformanceTableDataParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012762OperatingExpensesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012762OperatingExpensesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002574ExpenseExampleNoRedemptionParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002574ExpenseExampleNoRedemptionParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012762ShareholderFeesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012762ShareholderFeesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002574PerformanceParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002574PerformanceTableDataParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000035453ExpenseExampleNoRedemptionParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000035453ExpenseExampleNoRedemptionParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000035453OperatingExpensesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000035453OperatingExpensesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000035453ShareholderFeesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000035453ShareholderFeesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000029700ExpenseExampleNoRedemptionParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000029700ExpenseExampleNoRedemptionParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000029700PerformanceParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000029700PerformanceTableDataParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000029700OperatingExpensesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000029700OperatingExpensesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000029700ShareholderFeesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000029700ShareholderFeesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002573ShareholderFeesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002573ShareholderFeesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012760PerformanceParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012760PerformanceTableDataParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002573OperatingExpensesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002573OperatingExpensesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002573ExpenseExampleNoRedemptionParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002573ExpenseExampleNoRedemptionParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012760OperatingExpensesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012760OperatingExpensesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012760ShareholderFeesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012760ShareholderFeesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012760ExpenseExampleNoRedemptionParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012760ExpenseExampleNoRedemptionParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002568ShareholderFeesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002568ShareholderFeesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002568ExpenseExampleNoRedemptionRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002568ExpenseExampleNoRedemptionRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002568OperatingExpensesRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002568OperatingExpensesRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002568PerformanceRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002568PerformanceTableDataRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002568PerformanceParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002568PerformanceTableDataParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002568OperatingExpensesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002568OperatingExpensesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002568ExpenseExampleNoRedemptionParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002568ExpenseExampleNoRedemptionParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002568ShareholderFeesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002568ShareholderFeesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002568PerformanceParticipant2"
xlink:type="simple"
roleURI="http://vanguard/role/S000002568PerformanceTableDataParticipant2"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002568ShareholderFeesParticipant2"
xlink:type="simple"
roleURI="http://vanguard/role/S000002568ShareholderFeesParticipant2"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002568OperatingExpensesParticipant2"
xlink:type="simple"
roleURI="http://vanguard/role/S000002568OperatingExpensesParticipant2"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002568ExpenseExampleNoRedemptionParticipant2"
xlink:type="simple"
roleURI="http://vanguard/role/S000002568ExpenseExampleNoRedemptionParticipant2"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002572ExpenseExampleNoRedemptionParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002572ExpenseExampleNoRedemptionParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002572ShareholderFeesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002572ShareholderFeesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002572OperatingExpensesParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002572OperatingExpensesParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002572PerformanceParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002572PerformanceTableDataParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002569_C000007072BarChartRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002569_C000007072BarChartRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012758_C000034437BarChartRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012758_C000034437BarChartRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002571_C000007074BarChartRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002571_C000007074BarChartRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012759_C000034438BarChartRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012759_C000034438BarChartRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002572_C000007075BarChartRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002572_C000007075BarChartRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012760_C000034439BarChartRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012760_C000034439BarChartRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012761_C000034440BarChartRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012761_C000034440BarChartRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002573_C000007076BarChartRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002573_C000007076BarChartRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002574_C000007077BarChartRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002574_C000007077BarChartRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012762_C000034441BarChartRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000012762_C000034441BarChartRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000029700_C000091317BarChartRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000029700_C000091317BarChartRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012758_C000034437BarChartParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012758_C000034437BarChartParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002569_C000007072BarChartParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002569_C000007072BarChartParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012759_C000034438BarChartParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012759_C000034438BarChartParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002571_C000007074BarChartParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002571_C000007074BarChartParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002573_C000007076BarChartParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002573_C000007076BarChartParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012761_C000034440BarChartParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012761_C000034440BarChartParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012762_C000034441BarChartParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012762_C000034441BarChartParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002574_C000007077BarChartParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002574_C000007077BarChartParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000029700_C000091317BarChartParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000029700_C000091317BarChartParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000012760_C000034439BarChartParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000012760_C000034439BarChartParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002568_C000007070BarChartRetail"
xlink:type="simple"
roleURI="http://vanguard/role/S000002568_C000007070BarChartRetail"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002568_C000007070BarChartParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002568_C000007070BarChartParticipant"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002568_C000007071BarChartParticipant2"
xlink:type="simple"
roleURI="http://vanguard/role/S000002568_C000007071BarChartParticipant2"/>
<link:roleRef
xlink:href="chester-20130128.xsd#S000002572_C000007075BarChartParticipant"
xlink:type="simple"
roleURI="http://vanguard/role/S000002572_C000007075BarChartParticipant"/>
<link:presentationLink
xlink:role="http://vanguard/role/S000002568Participant"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000002568Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002568Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000002568Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ParticipantMember"
xlink:type="locator"
xlink:label="ParticipantMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000002568Participant2"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000002568Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002568Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000002568Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_Participant2Member"
xlink:type="locator"
xlink:label="Participant2Member"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000002568Retail"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000002568Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002568Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000002568Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_RetailMember"
xlink:type="locator"
xlink:label="RetailMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000012758Participant"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000012758Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012758Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000012758Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ParticipantMember"
xlink:type="locator"
xlink:label="ParticipantMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000012758Retail"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000012758Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012758Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000012758Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_RetailMember"
xlink:type="locator"
xlink:label="RetailMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000002571Participant"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000002571Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002571Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000002571Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ParticipantMember"
xlink:type="locator"
xlink:label="ParticipantMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000002571Retail"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000002571Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002571Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000002571Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_RetailMember"
xlink:type="locator"
xlink:label="RetailMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000012759Participant"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000012759Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012759Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000012759Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ParticipantMember"
xlink:type="locator"
xlink:label="ParticipantMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000012759Retail"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000012759Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012759Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000012759Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_RetailMember"
xlink:type="locator"
xlink:label="RetailMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000002572Participant"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000002572Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002572Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000002572Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ParticipantMember"
xlink:type="locator"
xlink:label="ParticipantMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000002572Retail"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000002572Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002572Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000002572Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_RetailMember"
xlink:type="locator"
xlink:label="RetailMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000012760Participant"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000012760Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012760Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000012760Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ParticipantMember"
xlink:type="locator"
xlink:label="ParticipantMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000012760Retail"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000012760Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012760Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000012760Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_RetailMember"
xlink:type="locator"
xlink:label="RetailMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000002573Participant"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000002573Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002573Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000002573Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ParticipantMember"
xlink:type="locator"
xlink:label="ParticipantMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000002573Retail"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000002573Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002573Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000002573Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_RetailMember"
xlink:type="locator"
xlink:label="RetailMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000012761Participant"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000012761Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012761Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000012761Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ParticipantMember"
xlink:type="locator"
xlink:label="ParticipantMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000012761Retail"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000012761Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012761Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000012761Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_RetailMember"
xlink:type="locator"
xlink:label="RetailMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000002574Participant"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000002574Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002574Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000002574Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ParticipantMember"
xlink:type="locator"
xlink:label="ParticipantMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000002574Retail"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000002574Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002574Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000002574Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_RetailMember"
xlink:type="locator"
xlink:label="RetailMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000012762Participant"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000012762Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012762Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000012762Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ParticipantMember"
xlink:type="locator"
xlink:label="ParticipantMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000012762Retail"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000012762Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012762Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000012762Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_RetailMember"
xlink:type="locator"
xlink:label="RetailMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000029700Participant"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000029700Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000029700Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000029700Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ParticipantMember"
xlink:type="locator"
xlink:label="ParticipantMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000029700Retail"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000029700Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000029700Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000029700Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_RetailMember"
xlink:type="locator"
xlink:label="RetailMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000035453Participant"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000035453Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000035453Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000035453Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ParticipantMember"
xlink:type="locator"
xlink:label="ParticipantMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000035453Retail"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000035453Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000035453Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000035453Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_RetailMember"
xlink:type="locator"
xlink:label="RetailMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000002569Participant"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000002569Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002569Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000002569Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ParticipantMember"
xlink:type="locator"
xlink:label="ParticipantMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000002569Retail"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"/>
<link:loc
xlink:label="RiskReturnHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveHeading"
xlink:label="ObjectiveHeading"/>
<link:loc
xlink:label="ObjectivePrimaryTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectivePrimaryTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ObjectiveSecondaryTextBlock"
xlink:label="ObjectiveSecondaryTextBlock"/>
<link:loc
xlink:label="ExpenseHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseNarrativeTextBlock"
xlink:label="ExpenseNarrativeTextBlock"/>
<link:loc
xlink:label="ShareholderFeesCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesTableTextBlock"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesCaption"
xlink:label="OperatingExpensesCaption"/>
<link:loc
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseFootnotesTextBlock"
xlink:label="ExpenseFootnotesTextBlock"/>
<link:loc
xlink:label="ExpensesDeferredChargesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesDeferredChargesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesRangeOfExchangeFeesTextBlock"
xlink:label="ExpensesRangeOfExchangeFeesTextBlock"/>
<link:loc
xlink:label="ExpenseExampleHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearHeading"
xlink:label="ExpenseExampleByYearHeading"/>
<link:loc
xlink:label="ExpenseExampleNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleByYearCaption"
xlink:label="ExpenseExampleByYearCaption"/>
<link:loc
xlink:label="ExpenseExampleWithRedemptionTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleWithRedemptionTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionNarrativeTextBlock"
xlink:label="ExpenseExampleNoRedemptionNarrativeTextBlock"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionByYearCaption"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionByYearCaption"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionTableTextBlock"
xlink:label="ExpenseExampleNoRedemptionTableTextBlock"/>
<link:loc
xlink:label="ExpenseExampleFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleClosingTextBlock"
xlink:label="ExpenseExampleClosingTextBlock"/>
<link:loc
xlink:label="PortfolioTurnoverHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PortfolioTurnoverHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"
xlink:label="ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:label="StrategyHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_StrategyNarrativeTextBlock"
xlink:label="StrategyNarrativeTextBlock"/>
<link:loc
xlink:label="RiskHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskNarrativeTextBlock"
xlink:label="RiskNarrativeTextBlock"/>
<link:loc
xlink:label="RiskFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskClosingTextBlock"
xlink:label="RiskClosingTextBlock"/>
<link:loc
xlink:label="BarChartAndPerformanceTableHeading"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartAndPerformanceTableHeading"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceNarrativeTextBlock"
xlink:label="PerformanceNarrativeTextBlock"/>
<link:loc
xlink:label="BarChartNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartHeading"
xlink:label="BarChartHeading"/>
<link:loc
xlink:label="BarChartTableTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartFootnotesTextBlock"
xlink:label="BarChartFootnotesTextBlock"/>
<link:loc
xlink:label="BarChartClosingTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartClosingTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableHeading"
xlink:label="PerformanceTableHeading"/>
<link:loc
xlink:label="PerformanceTableNarrativeTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableNarrativeTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableTextBlock"
xlink:label="PerformanceTableTextBlock"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MarketIndexPerformanceTableTextBlock"
xlink:label="MarketIndexPerformanceTableTextBlock"/>
<link:loc
xlink:label="PerformanceTableFootnotesTextBlock"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableFootnotesTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceTableClosingTextBlock"
xlink:label="PerformanceTableClosingTextBlock"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="RiskReturnHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveHeading"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="ObjectivePrimaryTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ObjectiveSecondaryTextBlock"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="ExpenseHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseNarrativeTextBlock"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ShareholderFeesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareholderFeesTableTextBlock"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="OperatingExpensesCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpenseFootnotesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpensesDeferredChargesTextBlock"
order="12.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="ExpensesRangeOfExchangeFeesTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleHeading"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ExpenseExampleByYearHeading"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNarrativeTextBlock"
order="16.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="ExpenseExampleByYearCaption"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleWithRedemptionTableTextBlock"
order="18.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="ExpenseExampleNoRedemptionNarrativeTextBlock"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ExpenseExampleNoRedemptionByYearCaption"
order="20.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
use="optional"/>
<link:presentationArc
use="optional"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="ExpenseExampleFootnotesTextBlock"/>
<link:presentationArc
xlink:to="ExpenseExampleClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
use="optional"/>
<link:presentationArc
use="optional"
order="24.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PortfolioTurnoverHeading"/>
<link:presentationArc
xlink:to="ExpenseExampleNoRedemptionAbstract"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
use="optional"/>
<link:presentationArc
use="optional"
order="26.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="StrategyHeading"/>
<link:presentationArc
xlink:to="StrategyNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
use="optional"/>
<link:presentationArc
use="optional"
order="28.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskHeading"/>
<link:presentationArc
xlink:to="RiskNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
use="optional"/>
<link:presentationArc
use="optional"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="RiskFootnotesTextBlock"/>
<link:presentationArc
xlink:to="RiskClosingTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
use="optional"/>
<link:presentationArc
use="optional"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartAndPerformanceTableHeading"/>
<link:presentationArc
xlink:to="PerformanceNarrativeTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
use="optional"/>
<link:presentationArc
use="optional"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartNarrativeTextBlock"/>
<link:presentationArc
xlink:to="BarChartHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="35.0"
use="optional"/>
<link:presentationArc
use="optional"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartTableTextBlock"/>
<link:presentationArc
xlink:to="BarChartFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="37.0"
use="optional"/>
<link:presentationArc
use="optional"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="BarChartClosingTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableHeading"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="39.0"
use="optional"/>
<link:presentationArc
use="optional"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableNarrativeTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="41.0"
use="optional"/>
<link:presentationArc
use="optional"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="MarketIndexPerformanceTableTextBlock"/>
<link:presentationArc
xlink:to="PerformanceTableFootnotesTextBlock"
xlink:from="RiskReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
use="optional"/>
<link:presentationArc
use="optional"
order="44.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RiskReturnAbstract"
xlink:to="PerformanceTableClosingTextBlock"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="S000002569Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002569Member"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="S000002569Member"
use="optional"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_RetailMember"
xlink:type="locator"
xlink:label="RetailMember"/></link:presentationLink>
<link:presentationLink
xlink:role="http://xbrl.sec.gov/rr/role/RiskReturn"
xlink:type="extended">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002568Member"
xlink:type="locator"
xlink:label="S000002568Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002568Member"
order="47.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000012758Member"
xlink:type="locator"
xlink:label="S000012758Member"/>
<link:presentationArc
use="optional"
xlink:to="S000012758Member"
order="48.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002571Member"
xlink:type="locator"
xlink:label="S000002571Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002571Member"
order="49.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000012759Member"
xlink:type="locator"
xlink:label="S000012759Member"/>
<link:presentationArc
use="optional"
xlink:to="S000012759Member"
order="50.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002572Member"
xlink:type="locator"
xlink:label="S000002572Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002572Member"
order="51.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000012760Member"
xlink:type="locator"
xlink:label="S000012760Member"/>
<link:presentationArc
use="optional"
xlink:to="S000012760Member"
order="52.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002573Member"
xlink:type="locator"
xlink:label="S000002573Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002573Member"
order="53.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000012761Member"
xlink:type="locator"
xlink:label="S000012761Member"/>
<link:presentationArc
use="optional"
xlink:to="S000012761Member"
order="54.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002574Member"
xlink:type="locator"
xlink:label="S000002574Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002574Member"
order="55.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000012762Member"
xlink:type="locator"
xlink:label="S000012762Member"/>
<link:presentationArc
use="optional"
xlink:to="S000012762Member"
order="56.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000029700Member"
xlink:type="locator"
xlink:label="S000029700Member"/>
<link:presentationArc
use="optional"
xlink:to="S000029700Member"
order="57.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000035453Member"
xlink:type="locator"
xlink:label="S000035453Member"/>
<link:presentationArc
use="optional"
xlink:to="S000035453Member"
order="58.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002569Member"
xlink:type="locator"
xlink:label="S000002569Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002569Member"
order="59.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://xbrl.sec.gov/rr/role/RiskReturnDetailData">
<link:loc
xlink:label="RiskReturnAbstract"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RiskReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureAxis"
xlink:label="PerformanceMeasureAxis"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareClassDomain"
xlink:label="ShareClassDomain"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsMember"
xlink:label="AfterTaxesOnDistributionsMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AfterTaxesOnDistributionsAndSalesMember"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsAndSalesMember"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_EntityDomain"
xlink:label="EntityDomain"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="PerformanceMeasureDomain"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureDomain"/>
<link:presentationArc
use="optional"
xlink:to="EntityDomain"
order="251.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="252.0"
xlink:to="PerformanceMeasureDomain"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002568Member"
xlink:type="locator"
xlink:label="S000002568Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002568Member"
order="253.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000012758Member"
xlink:type="locator"
xlink:label="S000012758Member"/>
<link:presentationArc
use="optional"
xlink:to="S000012758Member"
order="254.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002571Member"
xlink:type="locator"
xlink:label="S000002571Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002571Member"
order="255.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000012759Member"
xlink:type="locator"
xlink:label="S000012759Member"/>
<link:presentationArc
use="optional"
xlink:to="S000012759Member"
order="256.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002572Member"
xlink:type="locator"
xlink:label="S000002572Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002572Member"
order="257.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000012760Member"
xlink:type="locator"
xlink:label="S000012760Member"/>
<link:presentationArc
use="optional"
xlink:to="S000012760Member"
order="258.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002573Member"
xlink:type="locator"
xlink:label="S000002573Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002573Member"
order="259.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000012761Member"
xlink:type="locator"
xlink:label="S000012761Member"/>
<link:presentationArc
use="optional"
xlink:to="S000012761Member"
order="260.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002574Member"
xlink:type="locator"
xlink:label="S000002574Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002574Member"
order="261.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000012762Member"
xlink:type="locator"
xlink:label="S000012762Member"/>
<link:presentationArc
use="optional"
xlink:to="S000012762Member"
order="262.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000029700Member"
xlink:type="locator"
xlink:label="S000029700Member"/>
<link:presentationArc
use="optional"
xlink:to="S000029700Member"
order="263.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000035453Member"
xlink:type="locator"
xlink:label="S000035453Member"/>
<link:presentationArc
use="optional"
xlink:to="S000035453Member"
order="264.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002569Member"
xlink:type="locator"
xlink:label="S000002569Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002569Member"
order="265.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007070Member"
xlink:type="locator"
xlink:label="C000007070Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="266.0"
xlink:to="C000007070Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007074Member"
xlink:type="locator"
xlink:label="C000007074Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="267.0"
xlink:to="C000007074Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007075Member"
xlink:type="locator"
xlink:label="C000007075Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="268.0"
xlink:to="C000007075Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007076Member"
xlink:type="locator"
xlink:label="C000007076Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="269.0"
xlink:to="C000007076Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007077Member"
xlink:type="locator"
xlink:label="C000007077Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="270.0"
xlink:to="C000007077Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007072Member"
xlink:type="locator"
xlink:label="C000007072Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="271.0"
xlink:to="C000007072Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007071Member"
xlink:type="locator"
xlink:label="C000007071Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="272.0"
xlink:to="C000007071Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034437Member"
xlink:type="locator"
xlink:label="C000034437Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="273.0"
xlink:to="C000034437Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034438Member"
xlink:type="locator"
xlink:label="C000034438Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="274.0"
xlink:to="C000034438Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034439Member"
xlink:type="locator"
xlink:label="C000034439Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="275.0"
xlink:to="C000034439Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034440Member"
xlink:type="locator"
xlink:label="C000034440Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="276.0"
xlink:to="C000034440Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034441Member"
xlink:type="locator"
xlink:label="C000034441Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="277.0"
xlink:to="C000034441Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000091317Member"
xlink:type="locator"
xlink:label="C000091317Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="278.0"
xlink:to="C000091317Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000108861Member"
xlink:type="locator"
xlink:label="C000108861Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="279.0"
xlink:to="C000108861Member"
use="optional"/>
<link:loc
xlink:label="StandardnPoors500IndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_StandardnPoors500IndexMember"/>
<link:presentationArc
use="optional"
xlink:to="StandardnPoors500IndexMember"
order="280.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="BarclaysUSAggregateBondIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_BarclaysUSAggregateBondIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="BarclaysUSAggregateBondIndexMember"
order="281.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="TargetIncomeCompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_TargetIncomeCompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="TargetIncomeCompositeIndexMember"
order="282.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="Target2015CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2015CompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="Target2015CompositeIndexMember"
order="283.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="Target2025CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2025CompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="Target2025CompositeIndexMember"
order="284.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="Target2035CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2035CompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="Target2035CompositeIndexMember"
order="285.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="Target2045CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2045CompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="Target2045CompositeIndexMember"
order="286.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="MSCIUSBroadMarketIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_MSCIUSBroadMarketIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="MSCIUSBroadMarketIndexMember"
order="287.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="Target2050CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2050CompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="Target2050CompositeIndexMember"
order="288.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="Target2040CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2040CompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="Target2040CompositeIndexMember"
order="289.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="Target2030CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2030CompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="Target2030CompositeIndexMember"
order="290.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="Target2020CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2020CompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="Target2020CompositeIndexMember"
order="291.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="Target2010CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2010CompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="Target2010CompositeIndexMember"
order="292.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="TargetRetirement2055CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_TargetRetirement2055CompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="TargetRetirement2055CompositeIndexMember"
order="293.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://xbrl.sec.gov/rr/role/BarChartData">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_BarChartTableAbstract"
xlink:label="BarChartTableAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AnnualReturn2014"
xlink:label="AnnualReturn2014"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AnnualReturn2013"
xlink:label="AnnualReturn2013"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AnnualReturn2010"
xlink:label="AnnualReturn2012"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AnnualReturn2011"
xlink:label="AnnualReturn2011"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AnnualReturn2010"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AnnualReturn2010"/>
<link:loc
xlink:type="locator"
xlink:label="AnnualReturn2009"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AnnualReturn2009"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AnnualReturn2008"
xlink:label="AnnualReturn2008"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AnnualReturn2007"
xlink:label="AnnualReturn2007"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AnnualReturn2006"
xlink:label="AnnualReturn2006"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AnnualReturn2005"
xlink:label="AnnualReturn2005"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AnnualReturn2004"
xlink:label="AnnualReturn2004"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AnnualReturn2003"
xlink:label="AnnualReturn2003"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AnnualReturn2002"
xlink:label="AnnualReturn2002"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AnnualReturn2001"
xlink:label="AnnualReturn2001"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AnnualReturn2000"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AnnualReturn2000"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AnnualReturn1999"
xlink:label="AnnualReturn1999"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007070Member"
xlink:type="locator"
xlink:label="C000007070Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
xlink:to="C000007070Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007074Member"
xlink:type="locator"
xlink:label="C000007074Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="22.0"
xlink:to="C000007074Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007075Member"
xlink:type="locator"
xlink:label="C000007075Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
xlink:to="C000007075Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007076Member"
xlink:type="locator"
xlink:label="C000007076Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="24.0"
xlink:to="C000007076Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007077Member"
xlink:type="locator"
xlink:label="C000007077Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
xlink:to="C000007077Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007072Member"
xlink:type="locator"
xlink:label="C000007072Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="26.0"
xlink:to="C000007072Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007071Member"
xlink:type="locator"
xlink:label="C000007071Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
xlink:to="C000007071Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034437Member"
xlink:type="locator"
xlink:label="C000034437Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="28.0"
xlink:to="C000034437Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034438Member"
xlink:type="locator"
xlink:label="C000034438Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
xlink:to="C000034438Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034439Member"
xlink:type="locator"
xlink:label="C000034439Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="30.0"
xlink:to="C000034439Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034440Member"
xlink:type="locator"
xlink:label="C000034440Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
xlink:to="C000034440Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034441Member"
xlink:type="locator"
xlink:label="C000034441Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="32.0"
xlink:to="C000034441Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000091317Member"
xlink:type="locator"
xlink:label="C000091317Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
xlink:to="C000091317Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000108861Member"
xlink:type="locator"
xlink:label="C000108861Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="34.0"
xlink:to="C000108861Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://xbrl.sec.gov/rr/role/ExpenseExample">
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleAbstract"
xlink:type="locator"
xlink:label="ExpenseExampleAbstract"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="ExpenseExampleYear01"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleYear01"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleYear03"
xlink:type="locator"
xlink:label="ShareholderFeesTableTextBlock"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleYear05"
xlink:type="locator"
xlink:label="ExpenseExampleYear05"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleYear10"
xlink:type="locator"
xlink:label="ExpenseExampleYear10"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007070Member"
xlink:type="locator"
xlink:label="C000007070Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
xlink:to="C000007070Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007074Member"
xlink:type="locator"
xlink:label="C000007074Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="22.0"
xlink:to="C000007074Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007075Member"
xlink:type="locator"
xlink:label="C000007075Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
xlink:to="C000007075Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007076Member"
xlink:type="locator"
xlink:label="C000007076Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="24.0"
xlink:to="C000007076Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007077Member"
xlink:type="locator"
xlink:label="C000007077Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
xlink:to="C000007077Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007072Member"
xlink:type="locator"
xlink:label="C000007072Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="26.0"
xlink:to="C000007072Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007071Member"
xlink:type="locator"
xlink:label="C000007071Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
xlink:to="C000007071Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034437Member"
xlink:type="locator"
xlink:label="C000034437Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="28.0"
xlink:to="C000034437Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034438Member"
xlink:type="locator"
xlink:label="C000034438Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
xlink:to="C000034438Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034439Member"
xlink:type="locator"
xlink:label="C000034439Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="30.0"
xlink:to="C000034439Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034440Member"
xlink:type="locator"
xlink:label="C000034440Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
xlink:to="C000034440Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034441Member"
xlink:type="locator"
xlink:label="C000034441Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="32.0"
xlink:to="C000034441Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000091317Member"
xlink:type="locator"
xlink:label="C000091317Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
xlink:to="C000091317Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000108861Member"
xlink:type="locator"
xlink:label="C000108861Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="34.0"
xlink:to="C000108861Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://xbrl.sec.gov/rr/role/ExpenseExampleNoRedemption">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007070Member"
xlink:type="locator"
xlink:label="C000007070Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="C000007070Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007074Member"
xlink:type="locator"
xlink:label="C000007074Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="2.0"
xlink:to="C000007074Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007075Member"
xlink:type="locator"
xlink:label="C000007075Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="C000007075Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007076Member"
xlink:type="locator"
xlink:label="C000007076Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="C000007076Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007077Member"
xlink:type="locator"
xlink:label="C000007077Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="C000007077Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007072Member"
xlink:type="locator"
xlink:label="C000007072Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000007072Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007071Member"
xlink:type="locator"
xlink:label="C000007071Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="C000007071Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034437Member"
xlink:type="locator"
xlink:label="C000034437Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="C000034437Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034438Member"
xlink:type="locator"
xlink:label="C000034438Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="C000034438Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034439Member"
xlink:type="locator"
xlink:label="C000034439Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="C000034439Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034440Member"
xlink:type="locator"
xlink:label="C000034440Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="C000034440Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034441Member"
xlink:type="locator"
xlink:label="C000034441Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000034441Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000091317Member"
xlink:type="locator"
xlink:label="C000091317Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="C000091317Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000108861Member"
xlink:type="locator"
xlink:label="C000108861Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="C000108861Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:role="http://xbrl.sec.gov/rr/role/OperatingExpensesData"
xlink:type="extended">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007070Member"
xlink:type="locator"
xlink:label="C000007070Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
xlink:to="C000007070Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007074Member"
xlink:type="locator"
xlink:label="C000007074Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="22.0"
xlink:to="C000007074Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007075Member"
xlink:type="locator"
xlink:label="C000007075Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="23.0"
xlink:to="C000007075Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007076Member"
xlink:type="locator"
xlink:label="C000007076Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="24.0"
xlink:to="C000007076Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007077Member"
xlink:type="locator"
xlink:label="C000007077Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="25.0"
xlink:to="C000007077Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007072Member"
xlink:type="locator"
xlink:label="C000007072Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="26.0"
xlink:to="C000007072Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007071Member"
xlink:type="locator"
xlink:label="C000007071Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
xlink:to="C000007071Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034437Member"
xlink:type="locator"
xlink:label="C000034437Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="28.0"
xlink:to="C000034437Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034438Member"
xlink:type="locator"
xlink:label="C000034438Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
xlink:to="C000034438Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034439Member"
xlink:type="locator"
xlink:label="C000034439Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="30.0"
xlink:to="C000034439Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034440Member"
xlink:type="locator"
xlink:label="C000034440Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="31.0"
xlink:to="C000034440Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034441Member"
xlink:type="locator"
xlink:label="C000034441Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="32.0"
xlink:to="C000034441Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000091317Member"
xlink:type="locator"
xlink:label="C000091317Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="33.0"
xlink:to="C000091317Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000108861Member"
xlink:type="locator"
xlink:label="C000108861Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="34.0"
xlink:to="C000108861Member"
use="optional"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="35.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://xbrl.sec.gov/rr/role/PerformanceTableData">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnAbstract"
xlink:label="AverageAnnualReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_EntityDomain"
xlink:label="EntityDomain"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureAxis"
xlink:label="PerformanceMeasureAxis"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear01"
xlink:label="AverageAnnualReturnYear01"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear05"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear05"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear10"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear10"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnSinceInception"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnSinceInception"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareClassDomain"
xlink:label="ShareClassDomain"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AfterTaxesOnDistributionsMember"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsMember"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsAndSalesMember"
xlink:label="AfterTaxesOnDistributionsAndSalesMember"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_BasedOnMarketMember"
xlink:label="BasedOnMarketMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="PerformanceMeasureDomain"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureDomain"/>
<link:loc
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_ComparativeBenchmark"
xlink:label="ComparativeBenchmark"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="21.0"
xlink:to="PerformanceMeasureDomain"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareClassDomain"
order="22.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
use="optional"
xlink:to="AfterTaxesOnDistributionsMember"
order="23.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="24.0"
xlink:to="AfterTaxesOnDistributionsAndSalesMember"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="BasedOnMarketMember"
order="25.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="26.0"
xlink:to="ComparativeBenchmark"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="27.0"
xlink:to="PerformanceMeasureAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="28.0"
xlink:to="LegalEntityAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="29.0"
xlink:to="ProspectusShareClassAxis"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002568Member"
xlink:type="locator"
xlink:label="S000002568Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002568Member"
order="30.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000012758Member"
xlink:type="locator"
xlink:label="S000012758Member"/>
<link:presentationArc
use="optional"
xlink:to="S000012758Member"
order="31.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002571Member"
xlink:type="locator"
xlink:label="S000002571Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002571Member"
order="32.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000012759Member"
xlink:type="locator"
xlink:label="S000012759Member"/>
<link:presentationArc
use="optional"
xlink:to="S000012759Member"
order="33.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002572Member"
xlink:type="locator"
xlink:label="S000002572Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002572Member"
order="34.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000012760Member"
xlink:type="locator"
xlink:label="S000012760Member"/>
<link:presentationArc
use="optional"
xlink:to="S000012760Member"
order="35.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002573Member"
xlink:type="locator"
xlink:label="S000002573Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002573Member"
order="36.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000012761Member"
xlink:type="locator"
xlink:label="S000012761Member"/>
<link:presentationArc
use="optional"
xlink:to="S000012761Member"
order="37.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002574Member"
xlink:type="locator"
xlink:label="S000002574Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002574Member"
order="38.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000012762Member"
xlink:type="locator"
xlink:label="S000012762Member"/>
<link:presentationArc
use="optional"
xlink:to="S000012762Member"
order="39.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000029700Member"
xlink:type="locator"
xlink:label="S000029700Member"/>
<link:presentationArc
use="optional"
xlink:to="S000029700Member"
order="40.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000035453Member"
xlink:type="locator"
xlink:label="S000035453Member"/>
<link:presentationArc
use="optional"
xlink:to="S000035453Member"
order="41.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002569Member"
xlink:type="locator"
xlink:label="S000002569Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002569Member"
order="42.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007070Member"
xlink:type="locator"
xlink:label="C000007070Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="43.0"
xlink:to="C000007070Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007074Member"
xlink:type="locator"
xlink:label="C000007074Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="44.0"
xlink:to="C000007074Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007075Member"
xlink:type="locator"
xlink:label="C000007075Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="45.0"
xlink:to="C000007075Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007076Member"
xlink:type="locator"
xlink:label="C000007076Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="46.0"
xlink:to="C000007076Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007077Member"
xlink:type="locator"
xlink:label="C000007077Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="47.0"
xlink:to="C000007077Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007072Member"
xlink:type="locator"
xlink:label="C000007072Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="48.0"
xlink:to="C000007072Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007071Member"
xlink:type="locator"
xlink:label="C000007071Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="49.0"
xlink:to="C000007071Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034437Member"
xlink:type="locator"
xlink:label="C000034437Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="50.0"
xlink:to="C000034437Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034438Member"
xlink:type="locator"
xlink:label="C000034438Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="51.0"
xlink:to="C000034438Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034439Member"
xlink:type="locator"
xlink:label="C000034439Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="52.0"
xlink:to="C000034439Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034440Member"
xlink:type="locator"
xlink:label="C000034440Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="53.0"
xlink:to="C000034440Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034441Member"
xlink:type="locator"
xlink:label="C000034441Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="54.0"
xlink:to="C000034441Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000091317Member"
xlink:type="locator"
xlink:label="C000091317Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="55.0"
xlink:to="C000091317Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000108861Member"
xlink:type="locator"
xlink:label="C000108861Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="56.0"
xlink:to="C000108861Member"
use="optional"/>
<link:loc
xlink:label="StandardnPoors500IndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_StandardnPoors500IndexMember"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="57.0"
xlink:to="StandardnPoors500IndexMember"
use="optional"/>
<link:loc
xlink:label="BarclaysUSAggregateBondIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_BarclaysUSAggregateBondIndexMember"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="58.0"
xlink:to="BarclaysUSAggregateBondIndexMember"
use="optional"/>
<link:loc
xlink:label="TargetIncomeCompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_TargetIncomeCompositeIndexMember"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="59.0"
xlink:to="TargetIncomeCompositeIndexMember"
use="optional"/>
<link:loc
xlink:label="Target2015CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2015CompositeIndexMember"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="60.0"
xlink:to="Target2015CompositeIndexMember"
use="optional"/>
<link:loc
xlink:label="Target2025CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2025CompositeIndexMember"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="61.0"
xlink:to="Target2025CompositeIndexMember"
use="optional"/>
<link:loc
xlink:label="Target2035CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2035CompositeIndexMember"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="62.0"
xlink:to="Target2035CompositeIndexMember"
use="optional"/>
<link:loc
xlink:label="Target2045CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2045CompositeIndexMember"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="63.0"
xlink:to="Target2045CompositeIndexMember"
use="optional"/>
<link:loc
xlink:label="MSCIUSBroadMarketIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_MSCIUSBroadMarketIndexMember"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="64.0"
xlink:to="MSCIUSBroadMarketIndexMember"
use="optional"/>
<link:loc
xlink:label="Target2050CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2050CompositeIndexMember"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="65.0"
xlink:to="Target2050CompositeIndexMember"
use="optional"/>
<link:loc
xlink:label="Target2040CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2040CompositeIndexMember"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="66.0"
xlink:to="Target2040CompositeIndexMember"
use="optional"/>
<link:loc
xlink:label="Target2030CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2030CompositeIndexMember"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="67.0"
xlink:to="Target2030CompositeIndexMember"
use="optional"/>
<link:loc
xlink:label="Target2020CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2020CompositeIndexMember"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="68.0"
xlink:to="Target2020CompositeIndexMember"
use="optional"/>
<link:loc
xlink:label="Target2010CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2010CompositeIndexMember"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="69.0"
xlink:to="Target2010CompositeIndexMember"
use="optional"/>
<link:loc
xlink:label="TargetRetirement2055CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_TargetRetirement2055CompositeIndexMember"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="70.0"
xlink:to="TargetRetirement2055CompositeIndexMember"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:role="http://xbrl.sec.gov/rr/role/ShareholderFeesData"
xlink:type="extended">
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:label="MaximumAccountFee"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumAccountFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="PurchaseFeeParenthetical"
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"
xlink:label="RedemptionFeeParenthetical"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="71.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="72.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="73.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="74.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="75.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://xbrl.sec.gov/rr/role/Series">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002568Member"
xlink:type="locator"
xlink:label="S000002568Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002568Member"
order="76.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000012758Member"
xlink:type="locator"
xlink:label="S000012758Member"/>
<link:presentationArc
use="optional"
xlink:to="S000012758Member"
order="77.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002571Member"
xlink:type="locator"
xlink:label="S000002571Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002571Member"
order="78.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000012759Member"
xlink:type="locator"
xlink:label="S000012759Member"/>
<link:presentationArc
use="optional"
xlink:to="S000012759Member"
order="79.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002572Member"
xlink:type="locator"
xlink:label="S000002572Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002572Member"
order="80.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000012760Member"
xlink:type="locator"
xlink:label="S000012760Member"/>
<link:presentationArc
use="optional"
xlink:to="S000012760Member"
order="81.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002573Member"
xlink:type="locator"
xlink:label="S000002573Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002573Member"
order="82.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000012761Member"
xlink:type="locator"
xlink:label="S000012761Member"/>
<link:presentationArc
use="optional"
xlink:to="S000012761Member"
order="83.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002574Member"
xlink:type="locator"
xlink:label="S000002574Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002574Member"
order="84.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000012762Member"
xlink:type="locator"
xlink:label="S000012762Member"/>
<link:presentationArc
use="optional"
xlink:to="S000012762Member"
order="85.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000029700Member"
xlink:type="locator"
xlink:label="S000029700Member"/>
<link:presentationArc
use="optional"
xlink:to="S000029700Member"
order="86.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000035453Member"
xlink:type="locator"
xlink:label="S000035453Member"/>
<link:presentationArc
use="optional"
xlink:to="S000035453Member"
order="87.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_S000002569Member"
xlink:type="locator"
xlink:label="S000002569Member"/>
<link:presentationArc
use="optional"
xlink:to="S000002569Member"
order="88.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="LegalEntityAxis"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://xbrl.sec.gov/rr/role/Class">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007070Member"
xlink:type="locator"
xlink:label="C000007070Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="89.0"
xlink:to="C000007070Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007074Member"
xlink:type="locator"
xlink:label="C000007074Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="90.0"
xlink:to="C000007074Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007075Member"
xlink:type="locator"
xlink:label="C000007075Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="91.0"
xlink:to="C000007075Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007076Member"
xlink:type="locator"
xlink:label="C000007076Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="92.0"
xlink:to="C000007076Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007077Member"
xlink:type="locator"
xlink:label="C000007077Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="93.0"
xlink:to="C000007077Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007072Member"
xlink:type="locator"
xlink:label="C000007072Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="94.0"
xlink:to="C000007072Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007071Member"
xlink:type="locator"
xlink:label="C000007071Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="95.0"
xlink:to="C000007071Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034437Member"
xlink:type="locator"
xlink:label="C000034437Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="96.0"
xlink:to="C000034437Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034438Member"
xlink:type="locator"
xlink:label="C000034438Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="97.0"
xlink:to="C000034438Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034439Member"
xlink:type="locator"
xlink:label="C000034439Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="98.0"
xlink:to="C000034439Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034440Member"
xlink:type="locator"
xlink:label="C000034440Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="99.0"
xlink:to="C000034440Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034441Member"
xlink:type="locator"
xlink:label="C000034441Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="100.0"
xlink:to="C000034441Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000091317Member"
xlink:type="locator"
xlink:label="C000091317Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="101.0"
xlink:to="C000091317Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000108861Member"
xlink:type="locator"
xlink:label="C000108861Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="102.0"
xlink:to="C000108861Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://xbrl.sec.gov/rr/role/PerformanceMeasure">
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureAxis"
xlink:label="PerformanceMeasureAxis"
xlink:type="locator"/>
<link:loc
xlink:label="StandardnPoors500IndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_StandardnPoors500IndexMember"/>
<link:presentationArc
use="optional"
xlink:to="StandardnPoors500IndexMember"
order="103.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="BarclaysUSAggregateBondIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_BarclaysUSAggregateBondIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="BarclaysUSAggregateBondIndexMember"
order="104.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="TargetIncomeCompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_TargetIncomeCompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="TargetIncomeCompositeIndexMember"
order="105.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="Target2015CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2015CompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="Target2015CompositeIndexMember"
order="106.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="Target2025CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2025CompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="Target2025CompositeIndexMember"
order="107.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="Target2035CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2035CompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="Target2035CompositeIndexMember"
order="108.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="Target2045CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2045CompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="Target2045CompositeIndexMember"
order="109.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="MSCIUSBroadMarketIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_MSCIUSBroadMarketIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="MSCIUSBroadMarketIndexMember"
order="110.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="Target2050CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2050CompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="Target2050CompositeIndexMember"
order="111.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="Target2040CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2040CompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="Target2040CompositeIndexMember"
order="112.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="Target2030CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2030CompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="Target2030CompositeIndexMember"
order="113.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="Target2020CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2020CompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="Target2020CompositeIndexMember"
order="114.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="Target2010CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2010CompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="Target2010CompositeIndexMember"
order="115.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:loc
xlink:label="TargetRetirement2055CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_TargetRetirement2055CompositeIndexMember"/>
<link:presentationArc
use="optional"
xlink:to="TargetRetirement2055CompositeIndexMember"
order="116.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/></link:presentationLink>
<link:presentationLink
xlink:role="http://xbrl.sec.gov/rr/role/Prospectus"
xlink:type="extended">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_DocumentInformationDocumentAxis"
xlink:label="DocumentInformationDocumentAxis"
xlink:type="locator"/>
<link:presentationArc
xlink:from="DocumentInformationDocumentAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="117.0"
xlink:to="ParticipantMember"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ParticipantMember"
xlink:type="locator"
xlink:label="ParticipantMember"/>
<link:presentationArc
xlink:from="DocumentInformationDocumentAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="118.0"
xlink:to="Participant2Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_Participant2Member"
xlink:type="locator"
xlink:label="Participant2Member"/>
<link:presentationArc
xlink:from="DocumentInformationDocumentAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="119.0"
xlink:to="RetailMember"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_RetailMember"
xlink:type="locator"
xlink:label="RetailMember"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/Supplement">
<link:loc
xlink:href="chester-20130128.xsd#vanguard_SupplementTextBlock"
xlink:label="SupplementTextBlock"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="SupplementAbstract"
xlink:href="chester-20130128.xsd#vanguard_SupplementAbstract"/>
<link:presentationArc
xlink:from="SupplementAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="119.0"
xlink:to="SupplementTextBlock"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002569ExpenseExampleNoRedemptionRetail">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000002569Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002569Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000002569Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007072Member"
xlink:type="locator"
xlink:label="C000007072Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000007072Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012758ExpenseExampleNoRedemptionRetail">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000012758Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012758Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000012758Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034437Member"
xlink:type="locator"
xlink:label="C000034437Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000034437Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002571ExpenseExampleNoRedemptionRetail">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000002571Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002571Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000002571Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007074Member"
xlink:type="locator"
xlink:label="C000007074Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000007074Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012759ExpenseExampleNoRedemptionRetail">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000012759Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012759Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000012759Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034438Member"
xlink:type="locator"
xlink:label="C000034438Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000034438Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002572ExpenseExampleNoRedemptionRetail">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000002572Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002572Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000002572Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007075Member"
xlink:type="locator"
xlink:label="C000007075Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000007075Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012760ExpenseExampleNoRedemptionRetail">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000012760Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012760Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000012760Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034439Member"
xlink:type="locator"
xlink:label="C000034439Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000034439Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012761ExpenseExampleNoRedemptionRetail">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000012761Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012761Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000012761Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034440Member"
xlink:type="locator"
xlink:label="C000034440Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000034440Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002573ExpenseExampleNoRedemptionRetail">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000002573Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002573Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000002573Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007076Member"
xlink:type="locator"
xlink:label="C000007076Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000007076Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002574ExpenseExampleNoRedemptionRetail">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000002574Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002574Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000002574Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007077Member"
xlink:type="locator"
xlink:label="C000007077Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000007077Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012762ExpenseExampleNoRedemptionRetail">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000012762Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012762Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000012762Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034441Member"
xlink:type="locator"
xlink:label="C000034441Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000034441Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000035453ExpenseExampleNoRedemptionRetail">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000035453Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000035453Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000035453Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000108861Member"
xlink:type="locator"
xlink:label="C000108861Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000108861Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000029700ExpenseExampleNoRedemptionRetail">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000029700Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000029700Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000029700Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000091317Member"
xlink:type="locator"
xlink:label="C000091317Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000091317Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002569ExpenseExampleNoRedemptionParticipant">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000002569Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002569Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000002569Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007072Member"
xlink:type="locator"
xlink:label="C000007072Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000007072Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012758ExpenseExampleNoRedemptionParticipant">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000012758Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012758Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000012758Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034437Member"
xlink:type="locator"
xlink:label="C000034437Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000034437Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012759ExpenseExampleNoRedemptionParticipant">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000012759Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012759Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000012759Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034438Member"
xlink:type="locator"
xlink:label="C000034438Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000034438Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002571ExpenseExampleNoRedemptionParticipant">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000002571Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002571Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000002571Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007074Member"
xlink:type="locator"
xlink:label="C000007074Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000007074Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012761ExpenseExampleNoRedemptionParticipant">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000012761Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012761Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000012761Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034440Member"
xlink:type="locator"
xlink:label="C000034440Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000034440Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012762ExpenseExampleNoRedemptionParticipant">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000012762Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012762Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000012762Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034441Member"
xlink:type="locator"
xlink:label="C000034441Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000034441Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002574ExpenseExampleNoRedemptionParticipant">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000002574Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002574Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000002574Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007077Member"
xlink:type="locator"
xlink:label="C000007077Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000007077Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000035453ExpenseExampleNoRedemptionParticipant">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000035453Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000035453Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000035453Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000108861Member"
xlink:type="locator"
xlink:label="C000108861Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000108861Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000029700ExpenseExampleNoRedemptionParticipant">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000029700Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000029700Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000029700Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000091317Member"
xlink:type="locator"
xlink:label="C000091317Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000091317Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002573ExpenseExampleNoRedemptionParticipant">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000002573Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002573Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000002573Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007076Member"
xlink:type="locator"
xlink:label="C000007076Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000007076Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012760ExpenseExampleNoRedemptionParticipant">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000012760Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012760Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000012760Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034439Member"
xlink:type="locator"
xlink:label="C000034439Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000034439Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002568ExpenseExampleNoRedemptionRetail">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000002568Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002568Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000002568Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007070Member"
xlink:type="locator"
xlink:label="C000007070Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000007070Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007071Member"
xlink:type="locator"
xlink:label="C000007071Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="C000007071Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002568ExpenseExampleNoRedemptionParticipant">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000002568Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002568Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000002568Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007070Member"
xlink:type="locator"
xlink:label="C000007070Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000007070Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002568ExpenseExampleNoRedemptionParticipant2">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000002568Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002568Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000002568Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007071Member"
xlink:type="locator"
xlink:label="C000007071Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000007071Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002572ExpenseExampleNoRedemptionParticipant">
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionAbstract"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear01"
xlink:type="locator"
xlink:label="ExpenseExampleNoRedemptionYear01"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear03"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear03"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear05"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear05"/>
<link:loc
xlink:label="ExpenseExampleNoRedemptionYear10"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpenseExampleNoRedemptionYear10"/>
<link:loc
xlink:label="S000002572Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002572Member"/>
<link:presentationArc
order="1.0"
xlink:to="ExpenseExampleNoRedemptionYear01"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
use="optional"
priority="0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear03"
order="2.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear05"
order="3.0"/>
<link:presentationArc
priority="0"
use="optional"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:from="ExpenseExampleNoRedemptionAbstract"
xlink:to="ExpenseExampleNoRedemptionYear10"
order="4.0"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="S000002572Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007075Member"
xlink:type="locator"
xlink:label="C000007075Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="C000007075Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002568OperatingExpensesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002568Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002568Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000002568Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007070Member"
xlink:type="locator"
xlink:label="C000007070Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000007070Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007071Member"
xlink:type="locator"
xlink:label="C000007071Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="16.0"
xlink:to="C000007071Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002568OperatingExpensesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002568Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002568Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000002568Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007070Member"
xlink:type="locator"
xlink:label="C000007070Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000007070Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002568OperatingExpensesParticipant2">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002568Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002568Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000002568Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007071Member"
xlink:type="locator"
xlink:label="C000007071Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000007071Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002569OperatingExpensesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002569Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002569Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000002569Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007072Member"
xlink:type="locator"
xlink:label="C000007072Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000007072Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012758OperatingExpensesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012758Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012758Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000012758Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034437Member"
xlink:type="locator"
xlink:label="C000034437Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000034437Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002571OperatingExpensesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002571Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002571Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000002571Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007074Member"
xlink:type="locator"
xlink:label="C000007074Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000007074Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012759OperatingExpensesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012759Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012759Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000012759Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034438Member"
xlink:type="locator"
xlink:label="C000034438Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000034438Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012760OperatingExpensesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012760Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012760Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000012760Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034439Member"
xlink:type="locator"
xlink:label="C000034439Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000034439Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002573OperatingExpensesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002573Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002573Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000002573Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007076Member"
xlink:type="locator"
xlink:label="C000007076Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000007076Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012761OperatingExpensesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012761Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012761Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000012761Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034440Member"
xlink:type="locator"
xlink:label="C000034440Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000034440Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002572OperatingExpensesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002572Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002572Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000002572Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007075Member"
xlink:type="locator"
xlink:label="C000007075Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000007075Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012762OperatingExpensesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012762Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012762Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000012762Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034441Member"
xlink:type="locator"
xlink:label="C000034441Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000034441Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000035453OperatingExpensesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000035453Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000035453Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000035453Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000108861Member"
xlink:type="locator"
xlink:label="C000108861Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000108861Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000029700OperatingExpensesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000029700Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000029700Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000029700Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000091317Member"
xlink:type="locator"
xlink:label="C000091317Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000091317Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002574OperatingExpensesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002574Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002574Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000002574Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007077Member"
xlink:type="locator"
xlink:label="C000007077Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000007077Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002569OperatingExpensesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002569Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002569Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000002569Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007072Member"
xlink:type="locator"
xlink:label="C000007072Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000007072Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012758OperatingExpensesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012758Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012758Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000012758Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034437Member"
xlink:type="locator"
xlink:label="C000034437Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000034437Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012759OperatingExpensesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012759Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012759Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000012759Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034438Member"
xlink:type="locator"
xlink:label="C000034438Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000034438Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002571OperatingExpensesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002571Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002571Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000002571Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007074Member"
xlink:type="locator"
xlink:label="C000007074Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000007074Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012761OperatingExpensesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012761Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012761Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000012761Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034440Member"
xlink:type="locator"
xlink:label="C000034440Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000034440Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002574OperatingExpensesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002574Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002574Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000002574Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007077Member"
xlink:type="locator"
xlink:label="C000007077Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000007077Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012762OperatingExpensesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012762Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012762Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000012762Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034441Member"
xlink:type="locator"
xlink:label="C000034441Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000034441Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000035453OperatingExpensesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000035453Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000035453Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000035453Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000108861Member"
xlink:type="locator"
xlink:label="C000108861Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000108861Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000029700OperatingExpensesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000029700Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000029700Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000029700Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000091317Member"
xlink:type="locator"
xlink:label="C000091317Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000091317Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002573OperatingExpensesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002573Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002573Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000002573Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007076Member"
xlink:type="locator"
xlink:label="C000007076Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000007076Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012760OperatingExpensesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012760Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012760Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000012760Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034439Member"
xlink:type="locator"
xlink:label="C000034439Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000034439Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002572OperatingExpensesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002572Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002572Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesAbstract"
xlink:label="OperatingExpensesAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ManagementFeesOverAssets"
xlink:label="ManagementFeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="DistributionAndService12b1FeesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionAndService12b1FeesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_DistributionOrSimilarNon12b1FeesOverAssets"
xlink:label="DistributionOrSimilarNon12b1FeesOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="Component1OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component1OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component2OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component2OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="Component3OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_Component3OtherExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="OtherExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OtherExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_FeeWaiverOrReimbursementOverAssets"
xlink:label="FeeWaiverOrReimbursementOverAssets"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AcquiredFundFeesAndExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AcquiredFundFeesAndExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="ExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ExpensesOverAssets"/>
<link:loc
xlink:type="locator"
xlink:label="NetExpensesOverAssets"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_NetExpensesOverAssets"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_OperatingExpensesColumnName"
xlink:label="OperatingExpensesColumnName"
xlink:type="locator"/>
<link:loc
xlink:label="AquiredFundFeesExpensesExcludingAFFE"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_AquiredFundFeesExpensesExcludingAFFE"/>
<link:presentationArc
use="optional"
xlink:to="OperatingExpensesColumnName"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="ManagementFeesOverAssets"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="DistributionAndService12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="4.0"
xlink:to="DistributionOrSimilarNon12b1FeesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="Component1OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="Component2OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="Component3OtherExpensesOverAssets"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="OtherExpensesOverAssets"
order="8.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AquiredFundFeesExpensesExcludingAFFE"
order="9.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="OperatingExpensesAbstract"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="AcquiredFundFeesAndExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="ExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="FeeWaiverOrReimbursementOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="OperatingExpensesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="NetExpensesOverAssets"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="14.0"
xlink:to="S000002572Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007075Member"
xlink:type="locator"
xlink:label="C000007075Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="C000007075Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002568ShareholderFeesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002568Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002568Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:label="MaximumAccountFee"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumAccountFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000002568Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="MaximumAccountFee"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007070Member"
xlink:type="locator"
xlink:label="C000007070Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000007070Member"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007071Member"
xlink:type="locator"
xlink:label="C000007071Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="13.0"
xlink:to="C000007071Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002569ShareholderFeesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002569Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002569Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:label="MaximumAccountFee"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumAccountFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000002569Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="MaximumAccountFee"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007072Member"
xlink:type="locator"
xlink:label="C000007072Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000007072Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012758ShareholderFeesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012758Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012758Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:label="MaximumAccountFee"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumAccountFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000012758Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="MaximumAccountFee"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034437Member"
xlink:type="locator"
xlink:label="C000034437Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000034437Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002571ShareholderFeesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002571Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002571Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:label="MaximumAccountFee"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumAccountFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000002571Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="MaximumAccountFee"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007074Member"
xlink:type="locator"
xlink:label="C000007074Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000007074Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012759ShareholderFeesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012759Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012759Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:label="MaximumAccountFee"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumAccountFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000012759Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="MaximumAccountFee"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034438Member"
xlink:type="locator"
xlink:label="C000034438Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000034438Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012760ShareholderFeesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012760Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012760Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:label="MaximumAccountFee"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumAccountFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000012760Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="MaximumAccountFee"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034439Member"
xlink:type="locator"
xlink:label="C000034439Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000034439Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002573ShareholderFeesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002573Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002573Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:label="MaximumAccountFee"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumAccountFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000002573Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="MaximumAccountFee"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007076Member"
xlink:type="locator"
xlink:label="C000007076Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000007076Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012761ShareholderFeesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012761Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012761Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:label="MaximumAccountFee"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumAccountFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000012761Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="MaximumAccountFee"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034440Member"
xlink:type="locator"
xlink:label="C000034440Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000034440Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002572ShareholderFeesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002572Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002572Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:label="MaximumAccountFee"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumAccountFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000002572Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="MaximumAccountFee"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007075Member"
xlink:type="locator"
xlink:label="C000007075Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000007075Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000029700ShareholderFeesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000029700Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000029700Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:label="MaximumAccountFee"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumAccountFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000029700Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="MaximumAccountFee"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000091317Member"
xlink:type="locator"
xlink:label="C000091317Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000091317Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012762ShareholderFeesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012762Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012762Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:label="MaximumAccountFee"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumAccountFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000012762Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="MaximumAccountFee"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034441Member"
xlink:type="locator"
xlink:label="C000034441Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000034441Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000035453ShareholderFeesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000035453Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000035453Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:label="MaximumAccountFee"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumAccountFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000035453Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="MaximumAccountFee"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000108861Member"
xlink:type="locator"
xlink:label="C000108861Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000108861Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002574ShareholderFeesRetail">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002574Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002574Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:label="MaximumAccountFee"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumAccountFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000002574Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
use="optional"
xlink:to="MaximumAccountFee"
order="6.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007077Member"
xlink:type="locator"
xlink:label="C000007077Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000007077Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002571ShareholderFeesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002571Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002571Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000002571Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007074Member"
xlink:type="locator"
xlink:label="C000007074Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000007074Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012758ShareholderFeesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012758Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012758Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000012758Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034437Member"
xlink:type="locator"
xlink:label="C000034437Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000034437Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012759ShareholderFeesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012759Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012759Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000012759Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034438Member"
xlink:type="locator"
xlink:label="C000034438Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000034438Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002569ShareholderFeesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002569Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002569Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000002569Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007072Member"
xlink:type="locator"
xlink:label="C000007072Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000007072Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012761ShareholderFeesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012761Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012761Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000012761Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034440Member"
xlink:type="locator"
xlink:label="C000034440Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000034440Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002574ShareholderFeesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002574Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002574Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000002574Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007077Member"
xlink:type="locator"
xlink:label="C000007077Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000007077Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012762ShareholderFeesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012762Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012762Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000012762Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034441Member"
xlink:type="locator"
xlink:label="C000034441Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000034441Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000035453ShareholderFeesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000035453Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000035453Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000035453Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000108861Member"
xlink:type="locator"
xlink:label="C000108861Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000108861Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000029700ShareholderFeesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000029700Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000029700Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000029700Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000091317Member"
xlink:type="locator"
xlink:label="C000091317Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000091317Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002573ShareholderFeesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002573Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002573Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000002573Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007076Member"
xlink:type="locator"
xlink:label="C000007076Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000007076Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000012760ShareholderFeesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012760Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012760Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000012760Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034439Member"
xlink:type="locator"
xlink:label="C000034439Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000034439Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002568ShareholderFeesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002568Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002568Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000002568Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007070Member"
xlink:type="locator"
xlink:label="C000007070Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000007070Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002568ShareholderFeesParticipant2">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002568Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002568Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000002568Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007071Member"
xlink:type="locator"
xlink:label="C000007071Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000007071Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:type="extended"
xlink:role="http://vanguard/role/S000002572ShareholderFeesParticipant">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002572Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002572Member"/>
<link:loc
xlink:label="ShareholderFeesAbstract"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareholderFeesAbstract"/>
<link:loc
xlink:label="MaximumCumulativeSalesChargeOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumCumulativeSalesChargeOverOfferingPrice"
xlink:type="locator"
xlink:label="MaximumCumulativeSalesChargeOverOfferingPrice"/>
<link:loc
xlink:label="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
xlink:type="locator"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_RedemptionFeeOverRedemption"
xlink:type="locator"
xlink:label="RedemptionFeeOverRedemption"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_ETFConversionFee"
xlink:type="locator"
xlink:label="ETFConversionFee"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnPurchases"
xlink:type="locator"
xlink:label="TransactionFeeOnPurchases"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_TransactionFeeOnReinvestedDividends"
xlink:type="locator"
xlink:label="TransactionFeeOnReinvestedDividends"/>
<link:loc
xlink:label="RedemptionFeeParenthetical"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_RedemptionFeeParenthetical"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_PurchaseFeeParenthetical"
xlink:type="locator"
xlink:label="PurchaseFeeParenthetical"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="1.0"
xlink:to="S000002572Member"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumCumulativeSalesChargeOverOfferingPrice"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="3.0"
xlink:to="MaximumCumulativeSalesChargeOverOther"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
preferredLabel="http://xbrl.us/us-gaap/role/label/negated"
use="optional"
xlink:to="RedemptionFeeOverRedemption"
order="5.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="ShareholderFeesAbstract"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="7.0"
xlink:to="ETFConversionFee"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="TransactionFeeOnPurchases"
use="optional"/>
<link:presentationArc
xlink:from="ShareholderFeesAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="TransactionFeeOnReinvestedDividends"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="RedemptionFeeParenthetical"
order="10.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="RedemptionFeeOverRedemption"/>
<link:presentationArc
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="PurchaseFeeParenthetical"
use="optional"
xlink:from="MaximumCumulativeSalesChargeOverOther"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007075Member"
xlink:type="locator"
xlink:label="C000007075Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="C000007075Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000002569PerformanceTableDataRetail"
xlink:type="extended">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002569Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002569Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnAbstract"
xlink:label="AverageAnnualReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_EntityDomain"
xlink:label="EntityDomain"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureAxis"
xlink:label="PerformanceMeasureAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="IndexNoDeductionForFeesExpensesTaxes"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_IndexNoDeductionForFeesExpensesTaxes"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear01"
xlink:label="AverageAnnualReturnYear01"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear05"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear05"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear10"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear10"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnSinceInception"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnSinceInception"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareClassDomain"
xlink:label="ShareClassDomain"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AfterTaxesOnDistributionsMember"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsMember"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsAndSalesMember"
xlink:label="AfterTaxesOnDistributionsAndSalesMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="PerformanceMeasureDomain"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureDomain"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_BasedOnMarketMember"
xlink:label="BasedOnMarketMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_ComparativeBenchmark"
xlink:label="ComparativeBenchmark"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear01"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear05"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear10"
order="3.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnSinceInception"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="IndexNoDeductionForFeesExpensesTaxes"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="PerformanceMeasureDomain"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareClassDomain"
order="7.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="PerformanceMeasureAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="LegalEntityAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="ProspectusShareClassAxis"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="S000002569Member"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="AfterTaxesOnDistributionsMember"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AfterTaxesOnDistributionsAndSalesMember"
order="13.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
use="optional"
xlink:to="BasedOnMarketMember"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ComparativeBenchmark"
use="optional"/>
<link:loc
xlink:label="BarclaysUSAggregateBondIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_BarclaysUSAggregateBondIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="16.0"
xlink:to="BarclaysUSAggregateBondIndexMember"
use="optional"/>
<link:loc
xlink:label="MSCIUSBroadMarketIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_MSCIUSBroadMarketIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="MSCIUSBroadMarketIndexMember"
use="optional"/>
<link:loc
xlink:label="TargetIncomeCompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_TargetIncomeCompositeIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="18.0"
xlink:to="TargetIncomeCompositeIndexMember"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007072Member"
xlink:type="locator"
xlink:label="C000007072Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="C000007072Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000012758PerformanceTableDataRetail"
xlink:type="extended">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012758Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012758Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnAbstract"
xlink:label="AverageAnnualReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_EntityDomain"
xlink:label="EntityDomain"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureAxis"
xlink:label="PerformanceMeasureAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="IndexNoDeductionForFeesExpensesTaxes"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_IndexNoDeductionForFeesExpensesTaxes"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear01"
xlink:label="AverageAnnualReturnYear01"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear05"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear05"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear10"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear10"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnSinceInception"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnSinceInception"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareClassDomain"
xlink:label="ShareClassDomain"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AfterTaxesOnDistributionsMember"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsMember"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsAndSalesMember"
xlink:label="AfterTaxesOnDistributionsAndSalesMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="PerformanceMeasureDomain"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureDomain"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_BasedOnMarketMember"
xlink:label="BasedOnMarketMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_ComparativeBenchmark"
xlink:label="ComparativeBenchmark"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear01"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear05"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear10"
order="3.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnSinceInception"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="IndexNoDeductionForFeesExpensesTaxes"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="PerformanceMeasureDomain"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareClassDomain"
order="7.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="PerformanceMeasureAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="LegalEntityAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="ProspectusShareClassAxis"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="S000012758Member"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="AfterTaxesOnDistributionsMember"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AfterTaxesOnDistributionsAndSalesMember"
order="13.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
use="optional"
xlink:to="BasedOnMarketMember"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ComparativeBenchmark"
use="optional"/>
<link:loc
xlink:label="BarclaysUSAggregateBondIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_BarclaysUSAggregateBondIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="16.0"
xlink:to="BarclaysUSAggregateBondIndexMember"
use="optional"/>
<link:loc
xlink:label="MSCIUSBroadMarketIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_MSCIUSBroadMarketIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="MSCIUSBroadMarketIndexMember"
use="optional"/>
<link:loc
xlink:label="Target2010CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2010CompositeIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="18.0"
xlink:to="Target2010CompositeIndexMember"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034437Member"
xlink:type="locator"
xlink:label="C000034437Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="C000034437Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000002571PerformanceTableDataRetail"
xlink:type="extended">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002571Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002571Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnAbstract"
xlink:label="AverageAnnualReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_EntityDomain"
xlink:label="EntityDomain"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureAxis"
xlink:label="PerformanceMeasureAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="IndexNoDeductionForFeesExpensesTaxes"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_IndexNoDeductionForFeesExpensesTaxes"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear01"
xlink:label="AverageAnnualReturnYear01"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear05"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear05"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear10"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear10"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnSinceInception"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnSinceInception"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareClassDomain"
xlink:label="ShareClassDomain"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AfterTaxesOnDistributionsMember"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsMember"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsAndSalesMember"
xlink:label="AfterTaxesOnDistributionsAndSalesMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="PerformanceMeasureDomain"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureDomain"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_BasedOnMarketMember"
xlink:label="BasedOnMarketMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_ComparativeBenchmark"
xlink:label="ComparativeBenchmark"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear01"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear05"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear10"
order="3.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnSinceInception"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="IndexNoDeductionForFeesExpensesTaxes"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="PerformanceMeasureDomain"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareClassDomain"
order="7.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="PerformanceMeasureAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="LegalEntityAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="ProspectusShareClassAxis"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="S000002571Member"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="AfterTaxesOnDistributionsMember"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AfterTaxesOnDistributionsAndSalesMember"
order="13.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
use="optional"
xlink:to="BasedOnMarketMember"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ComparativeBenchmark"
use="optional"/>
<link:loc
xlink:label="BarclaysUSAggregateBondIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_BarclaysUSAggregateBondIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="16.0"
xlink:to="BarclaysUSAggregateBondIndexMember"
use="optional"/>
<link:loc
xlink:label="MSCIUSBroadMarketIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_MSCIUSBroadMarketIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="MSCIUSBroadMarketIndexMember"
use="optional"/>
<link:loc
xlink:label="Target2015CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2015CompositeIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="18.0"
xlink:to="Target2015CompositeIndexMember"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007074Member"
xlink:type="locator"
xlink:label="C000007074Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="C000007074Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000012759PerformanceTableDataRetail"
xlink:type="extended">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012759Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012759Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnAbstract"
xlink:label="AverageAnnualReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_EntityDomain"
xlink:label="EntityDomain"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureAxis"
xlink:label="PerformanceMeasureAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="IndexNoDeductionForFeesExpensesTaxes"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_IndexNoDeductionForFeesExpensesTaxes"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear01"
xlink:label="AverageAnnualReturnYear01"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear05"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear05"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear10"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear10"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnSinceInception"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnSinceInception"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareClassDomain"
xlink:label="ShareClassDomain"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AfterTaxesOnDistributionsMember"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsMember"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsAndSalesMember"
xlink:label="AfterTaxesOnDistributionsAndSalesMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="PerformanceMeasureDomain"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureDomain"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_BasedOnMarketMember"
xlink:label="BasedOnMarketMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_ComparativeBenchmark"
xlink:label="ComparativeBenchmark"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear01"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear05"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear10"
order="3.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnSinceInception"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="IndexNoDeductionForFeesExpensesTaxes"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="PerformanceMeasureDomain"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareClassDomain"
order="7.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="PerformanceMeasureAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="LegalEntityAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="ProspectusShareClassAxis"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="S000012759Member"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="AfterTaxesOnDistributionsMember"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AfterTaxesOnDistributionsAndSalesMember"
order="13.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
use="optional"
xlink:to="BasedOnMarketMember"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ComparativeBenchmark"
use="optional"/>
<link:loc
xlink:label="BarclaysUSAggregateBondIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_BarclaysUSAggregateBondIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="16.0"
xlink:to="BarclaysUSAggregateBondIndexMember"
use="optional"/>
<link:loc
xlink:label="MSCIUSBroadMarketIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_MSCIUSBroadMarketIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="MSCIUSBroadMarketIndexMember"
use="optional"/>
<link:loc
xlink:label="Target2020CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2020CompositeIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="18.0"
xlink:to="Target2020CompositeIndexMember"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034438Member"
xlink:type="locator"
xlink:label="C000034438Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="C000034438Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000002572PerformanceTableDataRetail"
xlink:type="extended">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002572Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002572Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnAbstract"
xlink:label="AverageAnnualReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_EntityDomain"
xlink:label="EntityDomain"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureAxis"
xlink:label="PerformanceMeasureAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="IndexNoDeductionForFeesExpensesTaxes"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_IndexNoDeductionForFeesExpensesTaxes"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear01"
xlink:label="AverageAnnualReturnYear01"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear05"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear05"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear10"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear10"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnSinceInception"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnSinceInception"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareClassDomain"
xlink:label="ShareClassDomain"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AfterTaxesOnDistributionsMember"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsMember"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsAndSalesMember"
xlink:label="AfterTaxesOnDistributionsAndSalesMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="PerformanceMeasureDomain"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureDomain"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_BasedOnMarketMember"
xlink:label="BasedOnMarketMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_ComparativeBenchmark"
xlink:label="ComparativeBenchmark"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear01"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear05"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear10"
order="3.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnSinceInception"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="IndexNoDeductionForFeesExpensesTaxes"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="PerformanceMeasureDomain"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareClassDomain"
order="7.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="PerformanceMeasureAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="LegalEntityAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="ProspectusShareClassAxis"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="S000002572Member"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="AfterTaxesOnDistributionsMember"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AfterTaxesOnDistributionsAndSalesMember"
order="13.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
use="optional"
xlink:to="BasedOnMarketMember"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ComparativeBenchmark"
use="optional"/>
<link:loc
xlink:label="BarclaysUSAggregateBondIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_BarclaysUSAggregateBondIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="16.0"
xlink:to="BarclaysUSAggregateBondIndexMember"
use="optional"/>
<link:loc
xlink:label="MSCIUSBroadMarketIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_MSCIUSBroadMarketIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="MSCIUSBroadMarketIndexMember"
use="optional"/>
<link:loc
xlink:label="Target2025CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2025CompositeIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="18.0"
xlink:to="Target2025CompositeIndexMember"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007075Member"
xlink:type="locator"
xlink:label="C000007075Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="C000007075Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000012760PerformanceTableDataRetail"
xlink:type="extended">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012760Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012760Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnAbstract"
xlink:label="AverageAnnualReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_EntityDomain"
xlink:label="EntityDomain"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureAxis"
xlink:label="PerformanceMeasureAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="IndexNoDeductionForFeesExpensesTaxes"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_IndexNoDeductionForFeesExpensesTaxes"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear01"
xlink:label="AverageAnnualReturnYear01"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear05"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear05"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear10"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear10"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnSinceInception"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnSinceInception"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareClassDomain"
xlink:label="ShareClassDomain"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AfterTaxesOnDistributionsMember"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsMember"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsAndSalesMember"
xlink:label="AfterTaxesOnDistributionsAndSalesMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="PerformanceMeasureDomain"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureDomain"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_BasedOnMarketMember"
xlink:label="BasedOnMarketMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_ComparativeBenchmark"
xlink:label="ComparativeBenchmark"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear01"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear05"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear10"
order="3.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnSinceInception"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="IndexNoDeductionForFeesExpensesTaxes"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="PerformanceMeasureDomain"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareClassDomain"
order="7.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="PerformanceMeasureAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="LegalEntityAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="ProspectusShareClassAxis"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="S000012760Member"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="AfterTaxesOnDistributionsMember"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AfterTaxesOnDistributionsAndSalesMember"
order="13.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
use="optional"
xlink:to="BasedOnMarketMember"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ComparativeBenchmark"
use="optional"/>
<link:loc
xlink:label="BarclaysUSAggregateBondIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_BarclaysUSAggregateBondIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="16.0"
xlink:to="BarclaysUSAggregateBondIndexMember"
use="optional"/>
<link:loc
xlink:label="MSCIUSBroadMarketIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_MSCIUSBroadMarketIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="MSCIUSBroadMarketIndexMember"
use="optional"/>
<link:loc
xlink:label="Target2030CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2030CompositeIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="18.0"
xlink:to="Target2030CompositeIndexMember"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034439Member"
xlink:type="locator"
xlink:label="C000034439Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="C000034439Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000012761PerformanceTableDataRetail"
xlink:type="extended">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012761Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012761Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnAbstract"
xlink:label="AverageAnnualReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_EntityDomain"
xlink:label="EntityDomain"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureAxis"
xlink:label="PerformanceMeasureAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="IndexNoDeductionForFeesExpensesTaxes"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_IndexNoDeductionForFeesExpensesTaxes"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear01"
xlink:label="AverageAnnualReturnYear01"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear05"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear05"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear10"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear10"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnSinceInception"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnSinceInception"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareClassDomain"
xlink:label="ShareClassDomain"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AfterTaxesOnDistributionsMember"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsMember"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsAndSalesMember"
xlink:label="AfterTaxesOnDistributionsAndSalesMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="PerformanceMeasureDomain"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureDomain"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_BasedOnMarketMember"
xlink:label="BasedOnMarketMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_ComparativeBenchmark"
xlink:label="ComparativeBenchmark"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear01"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear05"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear10"
order="3.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnSinceInception"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="IndexNoDeductionForFeesExpensesTaxes"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="PerformanceMeasureDomain"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareClassDomain"
order="7.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="PerformanceMeasureAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="LegalEntityAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="ProspectusShareClassAxis"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="S000012761Member"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="AfterTaxesOnDistributionsMember"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AfterTaxesOnDistributionsAndSalesMember"
order="13.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
use="optional"
xlink:to="BasedOnMarketMember"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ComparativeBenchmark"
use="optional"/>
<link:loc
xlink:label="BarclaysUSAggregateBondIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_BarclaysUSAggregateBondIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="16.0"
xlink:to="BarclaysUSAggregateBondIndexMember"
use="optional"/>
<link:loc
xlink:label="MSCIUSBroadMarketIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_MSCIUSBroadMarketIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="MSCIUSBroadMarketIndexMember"
use="optional"/>
<link:loc
xlink:label="Target2040CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2040CompositeIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="18.0"
xlink:to="Target2040CompositeIndexMember"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034440Member"
xlink:type="locator"
xlink:label="C000034440Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="C000034440Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000002573PerformanceTableDataRetail"
xlink:type="extended">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002573Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002573Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnAbstract"
xlink:label="AverageAnnualReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_EntityDomain"
xlink:label="EntityDomain"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureAxis"
xlink:label="PerformanceMeasureAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="IndexNoDeductionForFeesExpensesTaxes"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_IndexNoDeductionForFeesExpensesTaxes"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear01"
xlink:label="AverageAnnualReturnYear01"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear05"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear05"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear10"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear10"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnSinceInception"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnSinceInception"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareClassDomain"
xlink:label="ShareClassDomain"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AfterTaxesOnDistributionsMember"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsMember"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsAndSalesMember"
xlink:label="AfterTaxesOnDistributionsAndSalesMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="PerformanceMeasureDomain"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureDomain"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_BasedOnMarketMember"
xlink:label="BasedOnMarketMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_ComparativeBenchmark"
xlink:label="ComparativeBenchmark"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear01"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear05"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear10"
order="3.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnSinceInception"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="IndexNoDeductionForFeesExpensesTaxes"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="PerformanceMeasureDomain"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareClassDomain"
order="7.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="PerformanceMeasureAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="LegalEntityAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="ProspectusShareClassAxis"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="S000002573Member"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="AfterTaxesOnDistributionsMember"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AfterTaxesOnDistributionsAndSalesMember"
order="13.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
use="optional"
xlink:to="BasedOnMarketMember"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ComparativeBenchmark"
use="optional"/>
<link:loc
xlink:label="BarclaysUSAggregateBondIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_BarclaysUSAggregateBondIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="16.0"
xlink:to="BarclaysUSAggregateBondIndexMember"
use="optional"/>
<link:loc
xlink:label="MSCIUSBroadMarketIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_MSCIUSBroadMarketIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="MSCIUSBroadMarketIndexMember"
use="optional"/>
<link:loc
xlink:label="Target2035CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2035CompositeIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="18.0"
xlink:to="Target2035CompositeIndexMember"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007076Member"
xlink:type="locator"
xlink:label="C000007076Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="C000007076Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000002574PerformanceTableDataRetail"
xlink:type="extended">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000002574Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000002574Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnAbstract"
xlink:label="AverageAnnualReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_EntityDomain"
xlink:label="EntityDomain"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureAxis"
xlink:label="PerformanceMeasureAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="IndexNoDeductionForFeesExpensesTaxes"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_IndexNoDeductionForFeesExpensesTaxes"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear01"
xlink:label="AverageAnnualReturnYear01"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear05"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear05"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear10"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear10"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnSinceInception"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnSinceInception"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareClassDomain"
xlink:label="ShareClassDomain"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AfterTaxesOnDistributionsMember"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsMember"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsAndSalesMember"
xlink:label="AfterTaxesOnDistributionsAndSalesMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="PerformanceMeasureDomain"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureDomain"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_BasedOnMarketMember"
xlink:label="BasedOnMarketMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_ComparativeBenchmark"
xlink:label="ComparativeBenchmark"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear01"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear05"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear10"
order="3.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnSinceInception"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="IndexNoDeductionForFeesExpensesTaxes"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="PerformanceMeasureDomain"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareClassDomain"
order="7.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="PerformanceMeasureAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="LegalEntityAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="ProspectusShareClassAxis"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="S000002574Member"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="AfterTaxesOnDistributionsMember"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AfterTaxesOnDistributionsAndSalesMember"
order="13.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
use="optional"
xlink:to="BasedOnMarketMember"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ComparativeBenchmark"
use="optional"/>
<link:loc
xlink:label="BarclaysUSAggregateBondIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_BarclaysUSAggregateBondIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="16.0"
xlink:to="BarclaysUSAggregateBondIndexMember"
use="optional"/>
<link:loc
xlink:label="MSCIUSBroadMarketIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_MSCIUSBroadMarketIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="MSCIUSBroadMarketIndexMember"
use="optional"/>
<link:loc
xlink:label="Target2045CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2045CompositeIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="18.0"
xlink:to="Target2045CompositeIndexMember"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000007077Member"
xlink:type="locator"
xlink:label="C000007077Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="C000007077Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000012762PerformanceTableDataRetail"
xlink:type="extended">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012762Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012762Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnAbstract"
xlink:label="AverageAnnualReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_EntityDomain"
xlink:label="EntityDomain"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureAxis"
xlink:label="PerformanceMeasureAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="IndexNoDeductionForFeesExpensesTaxes"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_IndexNoDeductionForFeesExpensesTaxes"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear01"
xlink:label="AverageAnnualReturnYear01"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear05"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear05"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear10"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear10"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnSinceInception"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnSinceInception"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareClassDomain"
xlink:label="ShareClassDomain"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AfterTaxesOnDistributionsMember"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsMember"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsAndSalesMember"
xlink:label="AfterTaxesOnDistributionsAndSalesMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="PerformanceMeasureDomain"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureDomain"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_BasedOnMarketMember"
xlink:label="BasedOnMarketMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_ComparativeBenchmark"
xlink:label="ComparativeBenchmark"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear01"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear05"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear10"
order="3.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnSinceInception"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="IndexNoDeductionForFeesExpensesTaxes"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="PerformanceMeasureDomain"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareClassDomain"
order="7.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="PerformanceMeasureAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="LegalEntityAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="ProspectusShareClassAxis"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="S000012762Member"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="AfterTaxesOnDistributionsMember"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AfterTaxesOnDistributionsAndSalesMember"
order="13.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
use="optional"
xlink:to="BasedOnMarketMember"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ComparativeBenchmark"
use="optional"/>
<link:loc
xlink:label="BarclaysUSAggregateBondIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_BarclaysUSAggregateBondIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="16.0"
xlink:to="BarclaysUSAggregateBondIndexMember"
use="optional"/>
<link:loc
xlink:label="MSCIUSBroadMarketIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_MSCIUSBroadMarketIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="MSCIUSBroadMarketIndexMember"
use="optional"/>
<link:loc
xlink:label="Target2050CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_Target2050CompositeIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="18.0"
xlink:to="Target2050CompositeIndexMember"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000034441Member"
xlink:type="locator"
xlink:label="C000034441Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="C000034441Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000029700PerformanceTableDataRetail"
xlink:type="extended">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000029700Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000029700Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnAbstract"
xlink:label="AverageAnnualReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_EntityDomain"
xlink:label="EntityDomain"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureAxis"
xlink:label="PerformanceMeasureAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="IndexNoDeductionForFeesExpensesTaxes"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_IndexNoDeductionForFeesExpensesTaxes"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear01"
xlink:label="AverageAnnualReturnYear01"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear05"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear05"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear10"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear10"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnSinceInception"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnSinceInception"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ShareClassDomain"
xlink:label="ShareClassDomain"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AfterTaxesOnDistributionsMember"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsMember"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AfterTaxesOnDistributionsAndSalesMember"
xlink:label="AfterTaxesOnDistributionsAndSalesMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="PerformanceMeasureDomain"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureDomain"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_BasedOnMarketMember"
xlink:label="BasedOnMarketMember"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_ComparativeBenchmark"
xlink:label="ComparativeBenchmark"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear01"
order="1.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear05"
order="2.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnYear10"
order="3.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
use="optional"
xlink:to="AverageAnnualReturnSinceInception"
order="4.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="AverageAnnualReturnAbstract"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="5.0"
xlink:to="IndexNoDeductionForFeesExpensesTaxes"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="6.0"
xlink:to="PerformanceMeasureDomain"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="ShareClassDomain"
order="7.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="8.0"
xlink:to="PerformanceMeasureAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="9.0"
xlink:to="LegalEntityAxis"
use="optional"/>
<link:presentationArc
xlink:from="AverageAnnualReturnAbstract"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="10.0"
xlink:to="ProspectusShareClassAxis"
use="optional"/>
<link:presentationArc
xlink:from="LegalEntityAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="11.0"
xlink:to="S000029700Member"
use="optional"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="12.0"
xlink:to="AfterTaxesOnDistributionsMember"
use="optional"/>
<link:presentationArc
use="optional"
xlink:to="AfterTaxesOnDistributionsAndSalesMember"
order="13.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
use="optional"
xlink:to="BasedOnMarketMember"
order="14.0"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
xlink:type="arc"
xlink:from="PerformanceMeasureAxis"/>
<link:presentationArc
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="15.0"
xlink:to="ComparativeBenchmark"
use="optional"/>
<link:loc
xlink:label="BarclaysUSAggregateBondIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_BarclaysUSAggregateBondIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="16.0"
xlink:to="BarclaysUSAggregateBondIndexMember"
use="optional"/>
<link:loc
xlink:label="MSCIUSBroadMarketIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_MSCIUSBroadMarketIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="17.0"
xlink:to="MSCIUSBroadMarketIndexMember"
use="optional"/>
<link:loc
xlink:label="TargetRetirement2055CompositeIndexMember"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_TargetRetirement2055CompositeIndexMember"/>
<link:presentationArc
preferredLabel="http://www.xbrl.org/2003/role/terseLabel"
xlink:from="PerformanceMeasureAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="18.0"
xlink:to="TargetRetirement2055CompositeIndexMember"
use="optional"/>
<link:loc
xlink:href="chester-20130128.xsd#vanguard_C000091317Member"
xlink:type="locator"
xlink:label="C000091317Member"/>
<link:presentationArc
xlink:from="ProspectusShareClassAxis"
xlink:type="arc"
xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child"
order="19.0"
xlink:to="C000091317Member"
use="optional"/></link:presentationLink>
<link:presentationLink
xlink:role="http://vanguard/role/S000012758PerformanceTableDataParticipant"
xlink:type="extended">
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_LegalEntityAxis"
xlink:label="LegalEntityAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="ProspectusShareClassAxis"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_ProspectusShareClassAxis"/>
<link:loc
xlink:label="S000012758Member"
xlink:type="locator"
xlink:href="chester-20130128.xsd#vanguard_S000012758Member"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnAbstract"
xlink:label="AverageAnnualReturnAbstract"
xlink:type="locator"/>
<link:loc
xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/dei-2009-01-31.xsd#dei_EntityDomain"
xlink:label="EntityDomain"
xlink:type="locator"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_PerformanceMeasureAxis"
xlink:label="PerformanceMeasureAxis"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="IndexNoDeductionForFeesExpensesTaxes"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_IndexNoDeductionForFeesExpensesTaxes"/>
<link:loc
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear01"
xlink:label="AverageAnnualReturnYear01"
xlink:type="locator"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear05"
xlink:href="http://xbrl.sec.gov/rr/2010/rr-2010-02-28.xsd#rr_AverageAnnualReturnYear05"/>
<link:loc
xlink:type="locator"
xlink:label="AverageAnnualReturnYear10"
xlink:href="http://x