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      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>ENHANCED MECH</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>MECS INC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>STEWART ELECTRICAL CONTRACTING</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>XYZ SHEET METAL</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>BOSTON MECHANICAL SERVICES</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>BOSTON MECHANICAL INC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>EFR MECHANICAL</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>GRANITE MECH</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <LegalDomicileStateCd>NH</LegalDomicileStateCd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>NOTTER CONSTRUCTION</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <LegalDomicileStateCd>PA</LegalDomicileStateCd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>PERFORMANCE PLUMBING &amp; HEATING</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>ROYAL STEAM</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
      </IdRelatedOrgTxblCorpTrGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>0</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>0</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>0</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>0</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>0</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>0</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>0</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>0</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>0</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>0</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>0</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>0</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>1</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>0</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>1</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>1</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>1</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>0</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>PIPEFITTERS PENSION</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>P</TransactionTypeTxt>
        <InvolvedAmt>516297</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>REIMBURSEMENT EXPENSES</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
    </IRS990ScheduleR>
  </ReturnData>
</Return>