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  <xsd:element id="strs_TenderOfSharesForStockBasedAwardsShares" name="TenderOfSharesForStockBasedAwardsShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="strs_TenderOfSharesForStockBasedAwardsValue" name="TenderOfSharesForStockBasedAwardsValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="strs_TheOaksatLakewayMember" name="TheOaksatLakewayMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="strs_WestKilleenMarketMember" name="WestKilleenMarketMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>