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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>SONG PAK</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>SHANNON TOWER</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>JOANN WARRICK</PersonNm>
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      <Form990PartVIISectionAGrp>
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      <Form990PartVIISectionAGrp>
        <PersonNm>CAROLINE EWING</PersonNm>
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        <OtherCompensationAmt>22231</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>KRISTEN ADDISON CATLETT</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>DAVID MAGNUS</PersonNm>
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        <OtherCompensationAmt>26678</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>BRIAN MICHAELS</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>68826</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>THOMAS ROSSINI</PersonNm>
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        <AverageHoursPerWeekRt>55.00</AverageHoursPerWeekRt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>KIMBERLY TETER</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>269560</TotalOtherCompensationAmt>
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      <ContractorCompensationGrp>
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          <BusinessName>
            <BusinessNameLine1Txt>THE WHITING-TURNER CONTRACTING CO</BusinessNameLine1Txt>
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        </ContractorName>
        <ContractorAddress>
          <USAddress>
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            <StateAbbreviationCd>MD</StateAbbreviationCd>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>CLEAN NET OF BALTIMORE WASHINGTON</BusinessNameLine1Txt>
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        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>9861 BROKEN LAND PKWY 208</AddressLine1Txt>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>BROCK FOOD SERVICE</BusinessNameLine1Txt>
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        <ContractorAddress>
          <USAddress>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>BRIGHTVIEW LANDSCAPE SERVICES</BusinessNameLine1Txt>
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        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>PO BOX 740655</AddressLine1Txt>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>DEAN ADVENTURE CAMPS LLC</BusinessNameLine1Txt>
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        <ContractorAddress>
          <USAddress>
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      <ProgramServiceRevenueGrp>
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        <ExclusionAmt>129</ExclusionAmt>
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        <BusinessCd>900099</BusinessCd>
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        <ExclusionAmt>26294</ExclusionAmt>
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        <FundraisingAmt>30963</FundraisingAmt>
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        <ProgramServicesAmt>402004</ProgramServicesAmt>
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        <ManagementAndGeneralAmt>48475</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>3042</ProgramServicesAmt>
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        <ProgramServicesAmt>90053</ProgramServicesAmt>
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        <ProgramServicesAmt>1379563</ProgramServicesAmt>
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        <EOYAmt>343291</EOYAmt>
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        <OtherSpentProceedsAmt>7876417</OtherSpentProceedsAmt>
        <SubstantialCompletionYr>2020</SubstantialCompletionYr>
        <RefundingTaxExemptBondsInd>1</RefundingTaxExemptBondsInd>
        <RefundingTaxableBondsInd>0</RefundingTaxableBondsInd>
        <FinalAllocationMadeInd>1</FinalAllocationMadeInd>
        <AdequateBooksAndRecMaintInd>1</AdequateBooksAndRecMaintInd>
      </TaxExemptBondsProceedsGrp>
      <TaxExemptBondsPrivateBusUseGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <OwningBondFinancedPropertyInd>0</OwningBondFinancedPropertyInd>
        <AnyLeaseArrangementsInd>0</AnyLeaseArrangementsInd>
        <MgmtContractBondFincdPropInd>0</MgmtContractBondFincdPropInd>
        <AnyResearchAgreementsInd>0</AnyResearchAgreementsInd>
        <PrivateBusUseByOthersPct>0.00000</PrivateBusUseByOthersPct>
        <PrivateBusConcerningUBIPct>0.00000</PrivateBusConcerningUBIPct>
        <TotalPrivateBusinessUsePct>0.00000</TotalPrivateBusinessUsePct>
        <BondIssMeetPrvtSecPymtTestInd>0</BondIssMeetPrvtSecPymtTestInd>
        <ChangeInUseBondFinancedPropInd>0</ChangeInUseBondFinancedPropInd>
        <ProcsNonqualifiedBondRemdtdInd>1</ProcsNonqualifiedBondRemdtdInd>
      </TaxExemptBondsPrivateBusUseGrp>
      <TaxExemptBondsArbitrageGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <Form8038TFiledInd>0</Form8038TFiledInd>
        <RebateNotDueYetInd>0</RebateNotDueYetInd>
        <ExceptionToRebateInd>0</ExceptionToRebateInd>
        <NoRebateDueInd>1</NoRebateDueInd>
        <VariableRateIssueInd>0</VariableRateIssueInd>
        <HedgeIdentifiedInBksAndRecInd>0</HedgeIdentifiedInBksAndRecInd>
        <GrossProceedsInvestedInGICInd>0</GrossProceedsInvestedInGICInd>
        <GrossProceedsInvestedInd>0</GrossProceedsInvestedInd>
        <WrittenProcToMonitorReqsInd>1</WrittenProcToMonitorReqsInd>
      </TaxExemptBondsArbitrageGrp>
      <ProceduresCorrectiveActionGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <ProceduresCorrectiveActionInd>1</ProceduresCorrectiveActionInd>
      </ProceduresCorrectiveActionGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>DATE REBATE COMPUTATION PERFORMED</FormAndLineReferenceDesc>
        <ExplanationTxt>ISSUER NAME: MARYLAND HEALTH &amp; HIGHER EDUCATION FACILITIES AUTHORITY DATE THE REBATE COMPUTATION WAS PERFORMED: 08/09/2022</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE K, PART I, LINE A</FormAndLineReferenceDesc>
        <ExplanationTxt>ON JULY 20, 2016, SERIES 2016A TAX-EXEMPT BONDS WERE ISSUED AND THE SCHOOL OBTAINED A NOTE, WHICH ALLOWS FOR A MAXIMUM BORROWING AMOUNT OF $15,999,265. AT CLOSING, THE SCHOOL USED PROCEEDS TOTALING $8,181,344 TO PAY OFF PRINCIPAL AND INTEREST OF THE SERIES 2008 BONDS, THE LAND, AND THE NOTE PAYABLE AND TO FINANCE DEBT ISSUANCE COSTS. THE REMAINING $7,817,921 IN NEW DEBT WAS MADE AVAILABLE FOR CAPITAL PROJECTS OF THE SCHOOL, SPECIFICALLY THE DEVELOPMENT OF FUSCO PARK. THE FINANCING AGREEMENT WAS SCHEDULED TO EXPIRE IN JULY, 2019. ON 6/24/2019, MARYLAND HEALTH AND HIGHER EDUCATION FACILITIES AUTHORITY (MHHEFA), SANDY SPRING BANK AND THE KEY SCHOOL PREEMPTIVELY ADVANCED THE REMAINING FUNDS TO AN ESCROW ACCOUNT AT WILMINGTON TRUST WHICH WERE INVESTED IN US GOVERNMENT OBLIGATIONS, COMMERCIAL BANK CERTIFICATES OF DEPOSIT, COMMERCIAL PAPER AND OTHER INVESTMENTS. AS OF OCTOBER 29, 2020, THE PROCEEDS OF THE ESCROW ACCOUNT WERE FULLY DISBURSED FOR THE DEVELOPMENT OF FUSCO ATHLETIC PARK.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleK>
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      <GrntAsstBnftInterestedPrsnGrp>
        <CashGrantAmt>51200</CashGrantAmt>
        <TypeOfAssistanceTxt>FINANCIAL AID</TypeOfAssistanceTxt>
        <AssistancePurposeTxt>TUITION ASSISTANCE</AssistancePurposeTxt>
      </GrntAsstBnftInterestedPrsnGrp>
    </IRS990ScheduleL>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART III, LINE 1, ORGANIZATION'S MISSION:</FormAndLineReferenceDesc>
        <ExplanationTxt>OUR MISSION IS TO NOURISH AND GUIDE THIS NATURAL EXUBERANCE, ENERGY, AND DELIGHT IN THE SEARCH FOR MEANING, SO THAT EACH STUDENT EMBRACES LIFELONG LEARNING AND DEVELOPS INTO AN INFORMED, THOUGHTFUL, AND CONSTRUCTIVE MEMBER OF SOCIETY. WITH THESE BELIEFS AND OBJECTIVES IN MIND, WE COMMIT TO: PROVIDE A DYNAMIC EDUCATION THAT DEMANDS RIGOR, INTELLECTUAL INDEPENDENCE, CREATIVITY, INTERDISCIPLINARY THOUGHT, AND OPENNESS TO DIFFERING PERSPECTIVES THROUGH ACADEMIC AND CO-CURRICULAR PROGRAMS THAT TEACH STUDENTS EXPERIENTIALLY, AS ACTIVE PARTICIPANTS IN THE LEARNING PROCESS. GUIDE AND SUPPORT STUDENTS IN THEIR EFFORTS TO MATURE INTELLECTUALLY, SOCIALLY, AND EMOTIONALLY; TO MAKE DECISIONS FOR THEMSELVES AND TAKE RESPONSIBILITY FOR THOSE DECISIONS; TO ADDRESS THEIR INDIVIDUAL LEARNING NEEDS; AND TO BROADEN AND DEEPEN THEIR TALENTS AND INTERESTS. PREPARE STUDENTS WITH THE COLLABORATIVE AND COMPETITIVE ABILITIES AND THE COMMUNICATION AND THINKING SKILLS THEY NEED TO EFFECTIVELY UNDERTAKE CHALLENGES AND ASSUME RESPONSIBILITIES IN AN INTERCONNECTED, COMPLEX WORLD. CULTIVATE A COMMUNITY IN WHICH TEACHING AND LEARNING ARE LIFELONG ENDEAVORS FOR ALL, PURSUED THROUGH REFLECTION, PRIVATE STUDY, AND COMMUNAL ENGAGEMENT. SUSTAIN AN ETHICAL SCHOOL CULTURE THAT RESPECTS THE DIGNITY OF EVERY HUMAN BEING, RECOGNIZES THAT LIBERTY MUST BE BALANCED BY RESPONSIBILITY AND INDIVIDUAL ACTION BY THE NEEDS OF OTHERS, AND STRESSES TO ALL MEMBERS OF OUR SCHOOL COMMUNITY THE IMPORTANCE OF TRUST, MUTUAL RESPECT, COMPASSION, AND SERVICE TO OTHERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>AFTER A REVIEW OF THE FORM 990 BY THE FINANCIAL MANAGEMENT OF THE SCHOOL, THE SCHOOL'S AUDIT COMMITTEE WILL THEN REVIEW THE RETURN. THE FINAL STEP IN THE REVIEW PROCESS WILL BE THE PRESENTATION OF THE FORM 990 TO THE FULL BOARD OF TRUSTEES OF THE SCHOOL WITH DONOR INFORMATION REDACTED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE KEY SCHOOL BOARD OF TRUSTEES IS GOVERNED BY A SET OF BY-LAWS WHICH INCLUDES A CONFLICT OF INTEREST STATEMENT. THIS STATEMENT MANDATES THAT ANY DUALITY OF INTEREST OR CONFLICT OF INTEREST ON THE PART OF ANY TRUSTEE MUST BE DISCLOSED TO THE OTHER MEMBERS OF THE BOARD AND MADE A MATTER OF RECORD. THIS DISCLOSURE IS CONDUCTED ANNUALLY BY THE COMMITTEE ON TRUSTEES WITH RESULTS REVIEWED BY THE HEAD OF SCHOOL'S OFFICE. ANY ACKNOWLEDGED CONFLICTS ARE SHARED BACK TO THE COMMITTEE ON TRUSTEES FOR DISPOSITION PER ARTICLE IX IN THE BY-LAWS. KEY SCHOOL EMPLOYEES ALSO HAVE A CONFLICT OF INTEREST POLICY IN THEIR EMPLOYEE HANDBOOK. THIS POLICY MANDATES THAT CONFLICTS SHOULD BE REPORTED TO THE EMPLOYEE'S MANAGER. ANY CONFLICTS NOT REPORTED MAY RESULT IN DISCIPLINARY ACTION, UP TO AND INCLUDING TERMINATION. EACH MANAGER IS RESPONSIBLE FOR COMPLIANCE WITHIN THEIR AREA OF OVERSIGHT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COMPENSATION COMMITTEE OF THE KEY SCHOOL BOARD OF TRUSTEES ANNUALLY REVIEWS THE COMPENSATION OF THE HEAD OF SCHOOL TO CONFIRM ALIGNMENT WITH INDUSTRY NORMS. FACTORS TAKEN INTO CONSIDERATION INCLUDE BENCHMARKED SALARY DATA FROM THE NATIONAL ASSOCIATION OF INDEPENDENT SCHOOLS ON SIMILARLY ALIGNED AND SIZED INDEPENDENT SCHOOLS IN THE AREA. THE COMMITTEE REVIEWS THIS DATA BEFORE MAKING A RECOMMENDATION TO THE BOARD OF TRUSTEES REGARDING APPROPRIATE COMPENSATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE KEY SCHOOL DOES NOT MAKE ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC. FORM 990 IS AVAILABLE TO THE PUBLIC ON GUIDESTAR.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 24 AND PART X, LINE 17</FormAndLineReferenceDesc>
        <ExplanationTxt>A SETTLEMENT PAYMENT IS INCLUDED WITHIN THE ACCOUNTS PAYABLE AND ACCRUED EXPENSES LINE ON PART X AND IN OTHER EXPENSES ON PART IX.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C:</FormAndLineReferenceDesc>
        <ExplanationTxt>KEY SCHOOL DID NOT CHANGE THE OVERSIGHT OR SELECTION PROCESS FROM THE PRIOR YEAR.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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          <BusinessNameLine1Txt>DOVE LANE LLC</BusinessNameLine1Txt>
        </DisregardedEntityName>
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          <AddressLine1Txt>543 HILLSMERE DR</AddressLine1Txt>
          <CityNm>ANNAPOLIS</CityNm>
          <StateAbbreviationCd>MD</StateAbbreviationCd>
          <ZIPCd>21403</ZIPCd>
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        <PrimaryActivitiesTxt>REAL ESTATE HOLDING COMPANY</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MD</LegalDomicileStateCd>
        <TotalIncomeAmt>44718</TotalIncomeAmt>
        <EndOfYearAssetsAmt>125480</EndOfYearAssetsAmt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>KEY SCHOOL INC</BusinessNameLine1Txt>
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      </IdDisregardedEntitiesGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>THE KEY SCHOOL BUILDING &amp; FINANCE CORP</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>534 HILLSMERE DR</AddressLine1Txt>
          <CityNm>ANNAPOLIS</CityNm>
          <StateAbbreviationCd>MD</StateAbbreviationCd>
          <ZIPCd>21403</ZIPCd>
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        <PrimaryActivitiesTxt>DORMANT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MD</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>KEY SCHOOL INC</BusinessNameLine1Txt>
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        <OwnershipPct>1.00000</OwnershipPct>
        <ControlledOrganizationInd>1</ControlledOrganizationInd>
      </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>0</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>0</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>0</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>0</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>0</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>0</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
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</Return>