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  <xs:element id="spcif_IndustryConcentrationRiskMember" abstract="true" name="IndustryConcentrationRiskMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="spcif_InvestmentsOwnedAtFairValueMember" abstract="true" name="InvestmentsOwnedAtFairValueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="spcif_DebtAndEquitySecuritiesRealizedGainLossMember" abstract="true" name="DebtAndEquitySecuritiesRealizedGainLossMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="spcif_DebtAndEquitySecuritiesUnrealizedGainLossMember" abstract="true" name="DebtAndEquitySecuritiesUnrealizedGainLossMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="spcif_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSalesAndSettlements" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSalesAndSettlements" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="spcif_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetNetAccretionOfDiscountAndAmortizationOfInvestments" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetNetAccretionOfDiscountAndAmortizationOfInvestments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="spcif_MeasurementInputMarketTransactionMember" abstract="true" name="MeasurementInputMarketTransactionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="spcif_UnsecuredNotes1Member" abstract="true" name="UnsecuredNotes1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="spcif_UnsecuredNotes2Member" abstract="true" name="UnsecuredNotes2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="spcif_InvestmentCompanyDistributionToShareholdersIncreaseDecreasePerShare" abstract="false" name="InvestmentCompanyDistributionToShareholdersIncreaseDecreasePerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="spcif_InvestmentCompanyRatioAndSupplementalDataAbstract" abstract="true" name="InvestmentCompanyRatioAndSupplementalDataAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="spcif_InvestmentCompanyOperatingExpensesToAverageNetAssets" abstract="false" name="InvestmentCompanyOperatingExpensesToAverageNetAssets" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="spcif_ShareRepurchaseProgramAuthorizedPercentageOfOutstandingShares" abstract="false" name="ShareRepurchaseProgramAuthorizedPercentageOfOutstandingShares" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="spcif_ShareRepurchaseProgramPercentageOfEarlyRepurchaseDeduction" abstract="false" name="ShareRepurchaseProgramPercentageOfEarlyRepurchaseDeduction" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="spcif_O2026M1DividendsMember" abstract="true" name="O2026M1DividendsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="spcif_S2026M2DividendsMember" abstract="true" name="S2026M2DividendsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="spcif_O2026M2DividendsMember" abstract="true" name="O2026M2DividendsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
