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    <element id="FSI_DisclosureOfCompensationRelatedCostsSharebasedPaymentsTable" name="DisclosureOfCompensationRelatedCostsSharebasedPaymentsTable" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" />
    <element id="FSI_StockIssuedDuringPeriodSharesRestrictedStockAwardVested" name="StockIssuedDuringPeriodSharesRestrictedStockAwardVested" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="FSI_Distribution" name="Distribution" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="FSI_NoncontrollingInterestShareOfIncomeLoss" name="NoncontrollingInterestShareOfIncomeLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="FSI_NumberOfReportableSegmentsNotDisclosedFlag" name="NumberOfReportableSegmentsNotDisclosedFlag" nillable="true" xbrli:periodType="duration" type="xbrli:booleanItemType" substitutionGroup="xbrli:item" />
    <element id="FSI_GainLossOnReturnOfInvestment" name="GainLossOnReturnOfInvestment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="FSI_NoncashOperatingLease" name="NoncashOperatingLease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="FSI_CapitalInExcessOfParValueMember" name="CapitalInExcessOfParValueMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="FSI_ResearchAndDevelopmentExpensesMember" name="ResearchAndDevelopmentExpensesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
</schema>
