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  <xs:element name="DirectorsFeePayableCurrentAndNoncurrent" id="ssic_DirectorsFeePayableCurrentAndNoncurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
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  <xs:element name="IncreaseDecreaseInOrganizationalCostsPayable" id="ssic_IncreaseDecreaseInOrganizationalCostsPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="IncreaseDecreaseInManagementFeePayables" id="ssic_IncreaseDecreaseInManagementFeePayables" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
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  <xs:element name="IncreaseDecreaseInDirectorSFeePayable" id="ssic_IncreaseDecreaseInDirectorSFeePayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="IncreaseDecreaseInExciseTaxPayable" id="ssic_IncreaseDecreaseInExciseTaxPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
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  <xs:element name="IncreaseDecreaseInCapitalGainsIncentiveFeePayable" id="ssic_IncreaseDecreaseInCapitalGainsIncentiveFeePayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
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  <xs:element name="InterestAndDividendIncomePolicyTextBlock" id="ssic_InterestAndDividendIncomePolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
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  <xs:element name="StateStreetInstitutionalUSGovernmentMoneyMarketFundMember" id="ssic_StateStreetInstitutionalUSGovernmentMoneyMarketFundMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
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  <xs:element name="OfferingCostsChargedToCapital" id="ssic_OfferingCostsChargedToCapital" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
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  <xs:element name="PercentageOfTaxableIncomeAndGainDistributedByCompany" id="ssic_PercentageOfTaxableIncomeAndGainDistributedByCompany" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
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  <xs:element name="PercentOfPortfolioThatIsVariableRate" id="ssic_PercentOfPortfolioThatIsVariableRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
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  <xs:element name="SeniorSecuredFirstLienTermLoanMember" id="ssic_SeniorSecuredFirstLienTermLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
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  <xs:element name="InvestmentOwnedLoanRepaymentPeriod" id="ssic_InvestmentOwnedLoanRepaymentPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="TaxBasisOfInvestmentsAndCashEquivalentsUnrealizedAppreciationDepreciationNetAbstract" id="ssic_TaxBasisOfInvestmentsAndCashEquivalentsUnrealizedAppreciationDepreciationNetAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="IncomeTaxesSummaryAbstract" id="ssic_IncomeTaxesSummaryAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="AnnualizedPeriodOfYield" id="ssic_AnnualizedPeriodOfYield" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
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  <xs:element name="PaidInKindInterestRate" id="ssic_PaidInKindInterestRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="PrimeRate" id="ssic_PrimeRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
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</xs:schema>
