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    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>CORE S&amp;P MCP ETF</titleOfClass>
    <cusip>464287507</cusip>
    <value>47532</value>
    <shrsOrPrnAmt>
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    <votingAuthority>
      <Sole>35576</Sole>
      <Shared>0</Shared>
      <None>312362</None>
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  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>RUS 1000 ETF</titleOfClass>
    <cusip>464287622</cusip>
    <value>163214</value>
    <shrsOrPrnAmt>
      <sshPrnamt>1524652</sshPrnamt>
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    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>104214</Sole>
      <Shared>0</Shared>
      <None>1420438</None>
    </votingAuthority>
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  <infoTable>
    <nameOfIssuer>ISHARES TR</nameOfIssuer>
    <titleOfClass>RUSSELL 2000 ETF</titleOfClass>
    <cusip>464287655</cusip>
    <value>21711</value>
    <shrsOrPrnAmt>
      <sshPrnamt>198818</sshPrnamt>
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    <votingAuthority>
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      <Shared>0</Shared>
      <None>184920</None>
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  <infoTable>
    <nameOfIssuer>SCHWAB STRATEGIC TR</nameOfIssuer>
    <titleOfClass>US LRG CAP ETF</titleOfClass>
    <cusip>808524201</cusip>
    <value>1164</value>
    <shrsOrPrnAmt>
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  <infoTable>
    <nameOfIssuer>SCHWAB STRATEGIC TR</nameOfIssuer>
    <titleOfClass>US MID-CAP ETF</titleOfClass>
    <cusip>808524508</cusip>
    <value>22920</value>
    <shrsOrPrnAmt>
      <sshPrnamt>588897</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>0</Sole>
      <Shared>0</Shared>
      <None>588897</None>
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  <infoTable>
    <nameOfIssuer>SPDR S&amp;P 500 ETF TR</nameOfIssuer>
    <titleOfClass>TR UNIT</titleOfClass>
    <cusip>78462f103</cusip>
    <value>2736</value>
    <shrsOrPrnAmt>
      <sshPrnamt>14277</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>0</Sole>
      <Shared>0</Shared>
      <None>14277</None>
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  <infoTable>
    <nameOfIssuer>VANGUARD INDEX FDS</nameOfIssuer>
    <titleOfClass>TOTAL STK MKT</titleOfClass>
    <cusip>922908769</cusip>
    <value>2585</value>
    <shrsOrPrnAmt>
      <sshPrnamt>26183</sshPrnamt>
      <sshPrnamtType>SH</sshPrnamtType>
    </shrsOrPrnAmt>
    <investmentDiscretion>SOLE</investmentDiscretion>
    <votingAuthority>
      <Sole>0</Sole>
      <Shared>0</Shared>
      <None>26183</None>
    </votingAuthority>
  </infoTable>
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