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<!-- EDGAR Online I-Metrix Xcelerate Risk Return XBRL Schema Document, based on XBRL 2.1  http://www.edgar-online.com/ -->
<!-- Created (UTC): 1/18/2013 6:31:57 PM -->
<!-- XBRL File Set ID: f52305c5-5ffc-4ed5-af29-d910bd95e858 -->
<!-- App Version: 3.0.0.183, 5.1.2600.196608, 14.0 -->
<!-- Copyright (c) 2005-2013 EDGAR Online, Inc. All Rights Reserved. -->
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        <link:definition>010005 - Document - Risk/Return Summary {Unlabeled} (PowerShares Fundamental High Yield Corporate Bond Portfolio (Prospectus Summary):)</link:definition>
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        <link:definition>010025 - Schedule - Expense Example, No Redemption {Transposed}</link:definition>
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        <link:definition>010035 - Schedule - Average Annual Total Returns {Transposed}</link:definition>
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        <link:definition>050015 - Schedule - Annual Fund Operating Expenses</link:definition>
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        <link:definition>050020 - Schedule - Expense Example {Transposed}</link:definition>
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        <link:definition>050040 - Disclosure - Risk/Return Detail Data {Elements} (PowerShares Fundamental Investment Grade Corporate Bond Portfolio (Prospectus Summary):)</link:definition>
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