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  <xs:element id="snblt_OtherLongTermLiabilitiesMember" abstract="true" name="OtherLongTermLiabilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snblt_FirstPrioritySeniorSecuredCreditFacilityMember" abstract="true" name="FirstPrioritySeniorSecuredCreditFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="snblt_FourPointTwoFiveZeroPercentSeniorNotesDueNovember2029Member" abstract="true" name="FourPointTwoFiveZeroPercentSeniorNotesDueNovember2029Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snblt_TwoPointFourFiveZeroPercentSeniorNotesDueAugust2031Member" abstract="true" name="TwoPointFourFiveZeroPercentSeniorNotesDueAugust2031Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="snblt_FivePointFiveFiveZeroPercentSeniorNotesDueMay2033Member" abstract="true" name="FivePointFiveFiveZeroPercentSeniorNotesDueMay2033Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="snblt_DebtInstrumentCovenantFixedChargeCoverageRatio" abstract="false" name="DebtInstrumentCovenantFixedChargeCoverageRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="snblt_DebtInstrumentCovenantMinimumBorrowingAvailability" abstract="false" name="DebtInstrumentCovenantMinimumBorrowingAvailability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snblt_LineOfCreditFacilityRemainingBorrowingCapacityCovenantAdjusted" abstract="false" name="LineOfCreditFacilityRemainingBorrowingCapacityCovenantAdjusted" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snblt_DebtInstrumentNumberOfSeriesOfSeniorNotesOutstanding" abstract="false" name="DebtInstrumentNumberOfSeriesOfSeniorNotesOutstanding" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="snblt_OperatingLeaseAndFinanceLeaseRightOfUseAsset" abstract="false" name="OperatingLeaseAndFinanceLeaseRightOfUseAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snblt_OperatingLeaseAndFinanceLeaseLiability" abstract="false" name="OperatingLeaseAndFinanceLeaseLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snblt_DirectCostsOfLeasedAndRentedPropertyOrEquipmentMember" abstract="true" name="DirectCostsOfLeasedAndRentedPropertyOrEquipmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="snblt_WeightedAverageDiscountRateAbstract" abstract="true" name="WeightedAverageDiscountRateAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="snblt_DefinedBenefitPlanPlanAssetsInterestIncome" abstract="false" name="DefinedBenefitPlanPlanAssetsInterestIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="snblt_DefinedBenefitPlanInflationAssumptionAbstract" abstract="true" name="DefinedBenefitPlanInflationAssumptionAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="snblt_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRetailPriceIndexRate" abstract="false" name="DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRetailPriceIndexRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="snblt_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostConsumerPriceIndexRate" abstract="false" name="DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostConsumerPriceIndexRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
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  <xs:element id="snblt_DefinedBenefitPlanInsurancePoliciesMember" abstract="true" name="DefinedBenefitPlanInsurancePoliciesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snblt_DefinedBenefitPlanExpectedFutureBenefitPaymentTotal" abstract="false" name="DefinedBenefitPlanExpectedFutureBenefitPaymentTotal" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="snblt_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityAmortizationOfDiscount" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityAmortizationOfDiscount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="snblt_CommonStockHeldByTheESOTAbstract" abstract="true" name="CommonStockHeldByTheESOTAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="snblt_SaleOfCommonStockHeldByEmployeeStockTrustShares" abstract="false" name="SaleOfCommonStockHeldByEmployeeStockTrustShares" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
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  <xs:element id="snblt_EquityClassifiedAwardMember" abstract="true" name="EquityClassifiedAwardMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="snblt_LiabilityClassifiedLongTermIncentiveAwardsMember" abstract="true" name="LiabilityClassifiedLongTermIncentiveAwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snblt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsImpactOfModification" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsImpactOfModification" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="snblt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsReclassified" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsReclassified" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
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  <xs:element id="snblt_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsReclassifiedToEquity" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsReclassifiedToEquity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
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  <xs:element id="snblt_LongTermIncentiveAwardsMember" abstract="true" name="LongTermIncentiveAwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snblt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsImpactOfModification" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsImpactOfModification" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="snblt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsReclassificationsFromLiabilityClassifiedAwards" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsReclassificationsFromLiabilityClassifiedAwards" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
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  <xs:element id="snblt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsReclassificationFromLiabilityClassifiedAwardsInPeriodWeightedAverageExercisePrice" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsReclassificationFromLiabilityClassifiedAwardsInPeriodWeightedAverageExercisePrice" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
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  <xs:element id="snblt_FixedAssetRelatedCostMember" abstract="true" name="FixedAssetRelatedCostMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="snblt_TwoNorthAmericanBusinessesMember" abstract="true" name="TwoNorthAmericanBusinessesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
