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        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>283483</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <GrossSalesOfInventoryAmt>163597</GrossSalesOfInventoryAmt>
      <CostOfGoodsSoldAmt>9818</CostOfGoodsSoldAmt>
      <NetIncomeOrLossGrp>
        <TotalRevenueColumnAmt>153779</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>153779</RelatedOrExemptFuncIncomeAmt>
      </NetIncomeOrLossGrp>
      <OtherRevenueMiscGrp>
        <Desc>Misc</Desc>
        <BusinessCd>813920</BusinessCd>
        <TotalRevenueColumnAmt>17709</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>17709</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueTotalAmt>17709</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>5663320</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>4761614</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>891706</ExclusionAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>65400</TotalAmt>
        <ProgramServicesAmt>0</ProgramServicesAmt>
      </GrantsToDomesticOrgsGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>6000</TotalAmt>
        <ProgramServicesAmt>0</ProgramServicesAmt>
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      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>295172</TotalAmt>
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        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
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      <OtherSalariesAndWagesGrp>
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        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
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      <PensionPlanContributionsGrp>
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        <FundraisingAmt>0</FundraisingAmt>
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      <PayrollTaxesGrp>
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        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
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        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
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      <FeesForSrvcInvstMgmntFeesGrp>
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        <FundraisingAmt>0</FundraisingAmt>
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        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
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      <OfficeExpensesGrp>
        <TotalAmt>19640</TotalAmt>
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        <FundraisingAmt>0</FundraisingAmt>
      </OfficeExpensesGrp>
      <OccupancyGrp>
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        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
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        <TotalAmt>128915</TotalAmt>
        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
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      <ConferencesMeetingsGrp>
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        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
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        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
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      <InsuranceGrp>
        <TotalAmt>7891</TotalAmt>
        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>Postage</Desc>
        <TotalAmt>54179</TotalAmt>
        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
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      <OtherExpensesGrp>
        <Desc>Printing</Desc>
        <TotalAmt>58481</TotalAmt>
        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
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      <OtherExpensesGrp>
        <Desc>Misc</Desc>
        <TotalAmt>245003</TotalAmt>
        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
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      <AllOtherExpensesGrp>
        <TotalAmt>113335</TotalAmt>
        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
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      <TotalFunctionalExpensesGrp>
        <TotalAmt>3971642</TotalAmt>
        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
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      <SavingsAndTempCashInvstGrp>
        <BOYAmt>4867089</BOYAmt>
        <EOYAmt>5655942</EOYAmt>
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      <AccountsReceivableGrp>
        <BOYAmt>348639</BOYAmt>
        <EOYAmt>236807</EOYAmt>
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      <InventoriesForSaleOrUseGrp>
        <BOYAmt>13007</BOYAmt>
        <EOYAmt>12390</EOYAmt>
      </InventoriesForSaleOrUseGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>34251</BOYAmt>
        <EOYAmt>38446</EOYAmt>
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      <LandBldgEquipCostOrOtherBssAmt>153735</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>77956</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>38445</BOYAmt>
        <EOYAmt>75779</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>12232433</BOYAmt>
        <EOYAmt>14871814</EOYAmt>
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      <InvestmentsOtherSecuritiesGrp>
        <BOYAmt>873127</BOYAmt>
        <EOYAmt>891336</EOYAmt>
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      <OtherAssetsTotalGrp>
        <BOYAmt>19793</BOYAmt>
        <EOYAmt>20872</EOYAmt>
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      <TotalAssetsGrp>
        <BOYAmt>18426784</BOYAmt>
        <EOYAmt>21803386</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>671521</BOYAmt>
        <EOYAmt>532766</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>10000</BOYAmt>
        <EOYAmt>12500</EOYAmt>
      </DeferredRevenueGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>84592</BOYAmt>
        <EOYAmt>65211</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>766113</BOYAmt>
        <EOYAmt>610477</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>17660671</BOYAmt>
        <EOYAmt>21192909</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>17660671</BOYAmt>
        <EOYAmt>21192909</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>18426784</BOYAmt>
        <EOYAmt>21803386</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>1691678</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>1840560</NetUnrlzdGainsLossesInvstAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleD documentId="IRS990ScheduleD-01" softwareId="19009670">
      <LandGrp>
        <InvestmentCostOrOtherBasisAmt>0</InvestmentCostOrOtherBasisAmt>
        <BookValueAmt>0</BookValueAmt>
      </LandGrp>
      <LeaseholdImprovementsGrp>
        <OtherCostOrOtherBasisAmt>2161</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>1225</DepreciationAmt>
        <BookValueAmt>936</BookValueAmt>
      </LeaseholdImprovementsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>90796</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>53061</DepreciationAmt>
        <BookValueAmt>37735</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>60778</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>23670</DepreciationAmt>
        <BookValueAmt>37108</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>75779</TotalBookValueLandBuildingsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>Accrued PTO</Desc>
        <Amt>51302</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>Sales Tax payable</Desc>
        <Amt>44</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>Vouchers</Desc>
        <Amt>13865</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>65211</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>7452866</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>1840560</NetUnrealizedGainsInvstAmt>
      <OtherRevenueAmt>9818</OtherRevenueAmt>
      <RevenueNotReportedAmt>1850378</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>5602488</RevenueSubtotalAmt>
      <InvestmentExpensesNotIncldAmt>60832</InvestmentExpensesNotIncldAmt>
      <RevenueNotReportedFinclStmtAmt>60832</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>5663320</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>3920628</TotExpnsEtcAuditedFinclStmtAmt>
      <OtherExpensesIncludedAmt>9818</OtherExpensesIncludedAmt>
      <ExpensesNotReportedAmt>9818</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>3910810</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>60832</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>60832</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>3971642</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt XI, Line 2d</FormAndLineReferenceDesc>
        <ExplanationTxt>Cost of goods sold is an expense for audit purposes and is part of the revenue determination on the 990.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt XII, Line 2d</FormAndLineReferenceDesc>
        <ExplanationTxt>Cost of goods sold is an expense for audit purposes and is part of the revenue determination on the 990.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt X, Line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>ONCC has not indentified any material uncertain tax positions requiring accrual or disclosure in the financial statements.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleI documentId="IRS990ScheduleI-01" softwareId="19009670">
      <GrantRecordsMaintainedInd>true</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>ONS Foundation</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>125 Enterprise Drive</AddressLine1Txt>
          <CityNm>Pittsburgh</CityNm>
          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>15275</ZIPCd>
        </USAddress>
        <RecipientEIN>251410081</RecipientEIN>
        <CashGrantAmt>51200</CashGrantAmt>
        <PurposeOfGrantTxt>Grants and Sch.</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>Oncology Nursing Society</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>125 Enterprise Dr</AddressLine1Txt>
          <CityNm>Pittsburgh</CityNm>
          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>15275</ZIPCd>
        </USAddress>
        <RecipientEIN>510183279</RecipientEIN>
        <CashGrantAmt>8000</CashGrantAmt>
        <PurposeOfGrantTxt>Ed session assistance</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>1</Total501c3OrgCnt>
      <TotalOtherOrgCnt>1</TotalOtherOrgCnt>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Awards</GrantTypeTxt>
        <RecipientCnt>6</RecipientCnt>
        <CashGrantAmt>6000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="IRS990ScheduleJ-01">
      <DiscretionarySpendingAcctInd>X</DiscretionarySpendingAcctInd>
      <WrittenPolicyRefTAndEExpnssInd>true</WrittenPolicyRefTAndEExpnssInd>
      <SubstantiationRequiredInd>true</SubstantiationRequiredInd>
      <SeverancePaymentInd>false</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Cyndi Miller Murphy</PersonNm>
        <BaseCompensationFilingOrgAmt>117770</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>29492</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>1210</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>8797</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>532</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>157801</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="IRS990ScheduleO-01" softwareId="19009670">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>The Board of Directors are elected by the nurses holding certifications from the organization. The Board member terms are staggered so each year the certified nurses only vote to fill the Board positions opening each year.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>Conflict of Interest statements are reviewed by staff on an annual basis after they are completed by the Board members and staff. At the beginning of each Board meeting, there is a call for persons to declare if they have any conflict with any item on the agenda. Those who respond in the positive are asked to excuse themselves from that portion of the meeting.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 15a</FormAndLineReferenceDesc>
        <ExplanationTxt>The Executive Director compensation is determined by an annual evaluation with the CEO. The CEO obtains input from the Board. The salary range is determined with the assistance of outside compensation specialist. They use comparable information for the local market as well as the national market place. The comparables include not-for-profit and for profit salaries since that is the competition for talent.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>2019 Form 990 was not provided due to covid workload</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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      <IdRelatedOrgTxblPartnershipGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>ONS Building Partnership LP</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>125 Enterprise Drive</AddressLine1Txt>
          <CityNm>Pittsburgh</CityNm>
          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>15275</ZIPCd>
        </USAddress>
        <EIN>251879546</EIN>
        <PrimaryActivitiesTxt>Comm. Building</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>PA</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>Oncology Nursing Society</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <PredominantIncomeTypeTxt>excld under 512-514</PredominantIncomeTypeTxt>
        <ShareOfTotalIncomeAmt>18209</ShareOfTotalIncomeAmt>
        <ShareOfEOYAssetsAmt>892990</ShareOfEOYAssetsAmt>
        <DisproportionateAllocationsInd>false</DisproportionateAllocationsInd>
        <UBICodeVAmt>221</UBICodeVAmt>
        <GeneralOrManagingPartnerInd>false</GeneralOrManagingPartnerInd>
        <OwnershipPct>0.06450</OwnershipPct>
      </IdRelatedOrgTxblPartnershipGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>false</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>false</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>false</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>false</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>false</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>false</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>false</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>false</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>false</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>false</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>false</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>false</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>false</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>false</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>false</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>false</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>false</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>false</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>false</TransferFromOtherOrgInd>
    </IRS990ScheduleR>
  </ReturnData>
</Return>