<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated by Fujitsu Interstage XWand B0255 -->
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:ovs="http://www.ovs.it/2023-01-31" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xlink="http://www.w3.org/1999/xlink">
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel"/>
  <link:labelLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
    <link:loc xlink:type="locator" xlink:href="https://www.esma.europa.eu/taxonomy/2022-03-24/esef_cor.xsd#esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:label="NotesAccountingPoliciesAndMandatoryTags" xlink:title="NotesAccountingPoliciesAndMandatoryTags"/>
    <link:label xlink:type="resource" xlink:label="label_NotesAccountingPoliciesAndMandatoryTags" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NotesAccountingPoliciesAndMandatoryTags" xml:lang="en" id="label_NotesAccountingPoliciesAndMandatoryTags">Notes Accounting Policies and Mandatory Tags</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NotesAccountingPoliciesAndMandatoryTags" xlink:to="label_NotesAccountingPoliciesAndMandatoryTags" xlink:title="label: NotesAccountingPoliciesAndMandatoryTags to label_NotesAccountingPoliciesAndMandatoryTags"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_StatementOfFinancialPositionTable" xlink:label="StatementOfFinancialPositionTable" xlink:title="StatementOfFinancialPositionTable"/>
    <link:label xlink:type="resource" xlink:label="label_StatementOfFinancialPositionTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StatementOfFinancialPositionTable" xml:lang="it" id="label_StatementOfFinancialPositionTable">Prospetto della situazione patrimoniale-finanziaria [table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementOfFinancialPositionTable" xlink:to="label_StatementOfFinancialPositionTable" xlink:title="label: StatementOfFinancialPositionTable to label_StatementOfFinancialPositionTable"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_StatementOfFinancialPositionLineItems" xlink:label="StatementOfFinancialPositionLineItems" xlink:title="StatementOfFinancialPositionLineItems"/>
    <link:label xlink:type="resource" xlink:label="label_StatementOfFinancialPositionLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StatementOfFinancialPositionLineItems" xml:lang="it" id="label_StatementOfFinancialPositionLineItems">Prospetto della situazione patrimoniale-finanziaria [line items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementOfFinancialPositionLineItems" xlink:to="label_StatementOfFinancialPositionLineItems" xlink:title="label: StatementOfFinancialPositionLineItems to label_StatementOfFinancialPositionLineItems"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_ImpairmentLossesAndProvisionsForRisksAndCharges" xlink:label="ovs_ImpairmentLossesAndProvisionsForRisksAndCharges"/>
    <link:label xlink:type="resource" xlink:label="ovs_ImpairmentLossesAndProvisionsForRisksAndCharges_2" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="it">Svalutazioni e accantonamenti</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ovs_ImpairmentLossesAndProvisionsForRisksAndCharges" xlink:to="ovs_ImpairmentLossesAndProvisionsForRisksAndCharges_2"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_ImpairmentLossesAndProvisionsForRisksAndCharges" xlink:label="ImpairmentLossesAndProvisionsForRisksAndCharges" xlink:title="ImpairmentLossesAndProvisionsForRisksAndCharges"/>
    <link:label xlink:type="resource" xlink:label="label_ImpairmentLossesAndProvisionsForRisksAndCharges_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ImpairmentLossesAndProvisionsForRisksAndCharges" xml:lang="it" id="label_ImpairmentLossesAndProvisionsForRisksAndCharges_2">Rettifiche per elementi non monetari per riconciliare l'utile o la perdita ai flussi finanziari netti derivanti dalle (utilizzati nelle) attività operative che l'entità non presenta separatamente nello stesso prospetto o nota. [Rif: Utile (perdita)]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ImpairmentLossesAndProvisionsForRisksAndCharges" xlink:to="label_ImpairmentLossesAndProvisionsForRisksAndCharges_2" xlink:title="label: ImpairmentLossesAndProvisionsForRisksAndCharges to label_ImpairmentLossesAndProvisionsForRisksAndCharges"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_WriteOffOfEquityInvestment" xlink:label="Write-offofEquityInvestment" xlink:title="Write-offofEquityInvestment"/>
    <link:label xlink:type="resource" xlink:label="label_Write-offofEquityInvestment_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_Write-offofEquityInvestment" xml:lang="it" id="label_Write-offofEquityInvestment_2">Svalutazione partecipazioni</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Write-offofEquityInvestment" xlink:to="label_Write-offofEquityInvestment_2" xlink:title="label: Write-offofEquityInvestment to label_Write-offofEquityInvestment"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_WriteOffOfEquityInvestment" xlink:label="Write-offofEquityInvestment_2" xlink:title="Write-offofEquityInvestment"/>
    <link:label xlink:type="resource" xlink:label="label_Write-offofEquityInvestment_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_Write-offofEquityInvestment" xml:lang="it" id="label_Write-offofEquityInvestment_3">Le rettifiche per la perdita per riduzione di valore (ripristino di valore) rilevata nell'utile (perdita) d'esercizio per riconciliare l'utile o la perdita ai flussi finanziari netti derivanti dalle (utilizzati nelle) attività operative. [Rif: Perdita per riduzione di valore (ripristino di valore) rilevata nell'utile (perdita) d'esercizio] </link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Write-offofEquityInvestment_2" xlink:to="label_Write-offofEquityInvestment_3" xlink:title="label: Write-offofEquityInvestment to label_Write-offofEquityInvestment"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_AllocationsToProvisions" xlink:label="AllocationsToProvisions" xlink:title="AllocationsToProvisions"/>
    <link:label xlink:type="resource" xlink:label="label_AllocationsToProvisions_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AllocationsToProvisions" xml:lang="it" id="label_AllocationsToProvisions_2">Accantonamento fondi</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AllocationsToProvisions" xlink:to="label_AllocationsToProvisions_2" xlink:title="label: AllocationsToProvisions to label_AllocationsToProvisions"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_AllocationsToProvisions" xlink:label="AllocationsToProvisions_2" xlink:title="AllocationsToProvisions"/>
    <link:label xlink:type="resource" xlink:label="label_AllocationsToProvisions_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_AllocationsToProvisions" xml:lang="it" id="label_AllocationsToProvisions_3">Le rettifiche per gli accantonamenti per riconciliare l'utile o la perdita ai flussi finanziari netti derivanti dalle (utilizzati nelle) attività operative. [Rif: Accantonamenti; Utile (perdita)]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AllocationsToProvisions_2" xlink:to="label_AllocationsToProvisions_3" xlink:title="label: AllocationsToProvisions to label_AllocationsToProvisions"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_UtilisationOfProvisions" xlink:label="UtilisationOfProvisions" xlink:title="UtilisationOfProvisions"/>
    <link:label xlink:type="resource" xlink:label="label_UtilisationOfProvisions_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_UtilisationOfProvisions" xml:lang="it" id="label_UtilisationOfProvisions_2">Utilizzo fondi</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="UtilisationOfProvisions" xlink:to="label_UtilisationOfProvisions_2" xlink:title="label: UtilisationOfProvisions to label_UtilisationOfProvisions"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_UtilisationOfProvisions" xlink:label="UtilisationOfProvisions_2" xlink:title="UtilisationOfProvisions"/>
    <link:label xlink:type="resource" xlink:label="label_UtilisationOfProvisions_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_UtilisationOfProvisions" xml:lang="it" id="label_UtilisationOfProvisions_3">Le rettifiche per gli accantonamenti per riconciliare l'utile o la perdita ai flussi finanziari netti derivanti dalle (utilizzati nelle) attività operative. [Rif: Accantonamenti; Utile (perdita)]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="UtilisationOfProvisions_2" xlink:to="label_UtilisationOfProvisions_3" xlink:title="label: UtilisationOfProvisions to label_UtilisationOfProvisions"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_RealisedForeignExchangeDifferencesAndCashFlowsFromCurrencyDerivatives" xlink:label="RealisedForeignExchangeDifferencesAndCashFlowsFromCurrencyDerivatives" xlink:title="RealisedForeignExchangeDifferencesAndCashFlowsFromCurrencyDerivatives"/>
    <link:label xlink:type="resource" xlink:label="label_RealisedForeignExchangeDifferencesAndCashFlowsFromCurrencyDerivatives_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RealisedForeignExchangeDifferencesAndCashFlowsFromCurrencyDerivatives" xml:lang="it" id="label_RealisedForeignExchangeDifferencesAndCashFlowsFromCurrencyDerivatives_2">Differenze cambio realizzate e flusso di cassa derivati su valute</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RealisedForeignExchangeDifferencesAndCashFlowsFromCurrencyDerivatives" xlink:to="label_RealisedForeignExchangeDifferencesAndCashFlowsFromCurrencyDerivatives_2" xlink:title="label: RealisedForeignExchangeDifferencesAndCashFlowsFromCurrencyDerivatives to label_RealisedForeignExchangeDifferencesAndCashFlowsFromCurrencyDerivatives"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_RealisedForeignExchangeDifferencesAndCashFlowsFromCurrencyDerivatives" xlink:label="RealisedForeignExchangeDifferencesAndCashFlowsFromCurrencyDerivatives_2" xlink:title="RealisedForeignExchangeDifferencesAndCashFlowsFromCurrencyDerivatives"/>
    <link:label xlink:type="resource" xlink:label="label_RealisedForeignExchangeDifferencesAndCashFlowsFromCurrencyDerivatives_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_RealisedForeignExchangeDifferencesAndCashFlowsFromCurrencyDerivatives" xml:lang="it" id="label_RealisedForeignExchangeDifferencesAndCashFlowsFromCurrencyDerivatives_3">I flussi finanziari in entrata (in uscita), classificati come attività operative, che l'entità non presenta separatamente nello stesso prospetto o nota.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RealisedForeignExchangeDifferencesAndCashFlowsFromCurrencyDerivatives_2" xlink:to="label_RealisedForeignExchangeDifferencesAndCashFlowsFromCurrencyDerivatives_3" xlink:title="label: RealisedForeignExchangeDifferencesAndCashFlowsFromCurrencyDerivatives to label_RealisedForeignExchangeDifferencesAndCashFlowsFromCurrencyDerivatives"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_PurchaseOfPpeAndIntangibleAssetsClassifiedAsInvestingActivities" xlink:label="PurchaseOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities" xlink:title="PurchaseOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities"/>
    <link:label xlink:type="resource" xlink:label="label_PurchaseOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PurchaseOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities" xml:lang="it" id="label_PurchaseOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities">(Investimenti) immobilizzazioni </link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PurchaseOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities" xlink:to="label_PurchaseOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities" xlink:title="label: PurchaseOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities to label_PurchaseOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_PurchaseOfPpeAndIntangibleAssetsClassifiedAsInvestingActivities" xlink:label="PurchaseOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities_3" xlink:title="PurchaseOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities"/>
    <link:label xlink:type="resource" xlink:label="label_PurchaseOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities_4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_PurchaseOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities" xml:lang="it" id="label_PurchaseOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities_4">I flussi finanziari in uscita per attività di investimento. </link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PurchaseOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities_3" xlink:to="label_PurchaseOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities_4" xlink:title="label: PurchaseOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities to label_PurchaseOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_ProceedsFromSalesOfPpeAndIntangibleAssetsClassifiedAsInvestingActivities" xlink:label="ProceedsFromSalesOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities" xlink:title="ProceedsFromSalesOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities"/>
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromSalesOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ProceedsFromSalesOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities" xml:lang="it" id="label_ProceedsFromSalesOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities">Disinvestimenti immobilizzazioni </link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromSalesOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities" xlink:to="label_ProceedsFromSalesOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities" xlink:title="label: ProceedsFromSalesOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities to label_ProceedsFromSalesOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_ProceedsFromSalesOfPpeAndIntangibleAssetsClassifiedAsInvestingActivities" xlink:label="ProceedsFromSalesOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities_2" xlink:title="ProceedsFromSalesOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities"/>
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromSalesOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ProceedsFromSalesOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities" xml:lang="it" id="label_ProceedsFromSalesOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities_3">I flussi finanziari in entrata derivanti da attività di investimento. </link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromSalesOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities_2" xlink:to="label_ProceedsFromSalesOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities_3" xlink:title="label: ProceedsFromSalesOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities to label_ProceedsFromSalesOfPPEAndIntangibleAssetsClassifiedAsInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_IncreaseDecreaseInEquityInvestments" xlink:label="IncreaseDecreaseInEquityInvestments" xlink:title="IncreaseDecreaseInEquityInvestments"/>
    <link:label xlink:type="resource" xlink:label="label_IncreaseDecreaseInEquityInvestments_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IncreaseDecreaseInEquityInvestments" xml:lang="it" id="label_IncreaseDecreaseInEquityInvestments_2">(Incremento) Decremento partecipazioni</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInEquityInvestments" xlink:to="label_IncreaseDecreaseInEquityInvestments_2" xlink:title="label: IncreaseDecreaseInEquityInvestments to label_IncreaseDecreaseInEquityInvestments"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_IncreaseDecreaseInEquityInvestments" xlink:label="IncreaseDecreaseInEquityInvestments_3" xlink:title="IncreaseDecreaseInEquityInvestments"/>
    <link:label xlink:type="resource" xlink:label="label_IncreaseDecreaseInEquityInvestments_4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_IncreaseDecreaseInEquityInvestments" xml:lang="it" id="label_IncreaseDecreaseInEquityInvestments_4">I flussi finanziari in entrata (in uscita), classificati come attività di investimento, che l'entità non presenta separatamente nello stesso prospetto o nota. </link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInEquityInvestments_3" xlink:to="label_IncreaseDecreaseInEquityInvestments_4" xlink:title="label: IncreaseDecreaseInEquityInvestments to label_IncreaseDecreaseInEquityInvestments"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_CashOutDueToBusinessCombinationDuringThePeriod" xlink:label="CashOutDueToBusinessCombinationDuringThePeriod" xlink:title="CashOutDueToBusinessCombinationDuringThePeriod"/>
    <link:label xlink:type="resource" xlink:label="label_CashOutDueToBusinessCombinationDuringThePeriod_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CashOutDueToBusinessCombinationDuringThePeriod" xml:lang="it" id="label_CashOutDueToBusinessCombinationDuringThePeriod_2">Cash out in seguito ad aggregazioni aziendali dell'esercizio</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CashOutDueToBusinessCombinationDuringThePeriod" xlink:to="label_CashOutDueToBusinessCombinationDuringThePeriod_2" xlink:title="label: CashOutDueToBusinessCombinationDuringThePeriod to label_CashOutDueToBusinessCombinationDuringThePeriod"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_CashOutDueToBusinessCombinationDuringThePeriod" xlink:label="CashOutDueToBusinessCombinationDuringThePeriod_2" xlink:title="CashOutDueToBusinessCombinationDuringThePeriod"/>
    <link:label xlink:type="resource" xlink:label="label_CashOutDueToBusinessCombinationDuringThePeriod_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_CashOutDueToBusinessCombinationDuringThePeriod" xml:lang="it" id="label_CashOutDueToBusinessCombinationDuringThePeriod_3">I flussi finanziari complessivi usati nell'ottenimento del controllo di controllate o di altre aziende, classificati come attività di investimento [Rif: Controllate [member]] </link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CashOutDueToBusinessCombinationDuringThePeriod_2" xlink:to="label_CashOutDueToBusinessCombinationDuringThePeriod_3" xlink:title="label: CashOutDueToBusinessCombinationDuringThePeriod to label_CashOutDueToBusinessCombinationDuringThePeriod"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_CashOutDueToBusinessCombinationDuringThePeriod" xlink:label="CashOutDueToBusinessCombinationDuringThePeriod_4" xlink:title="CashOutDueToBusinessCombinationDuringThePeriod"/>
    <link:label xlink:type="resource" xlink:label="label_CashOutDueToBusinessCombinationDuringThePeriod_5" xlink:role="http://www.xbrl.org/2003/role/negativeTerseLabel" xlink:title="label_CashOutDueToBusinessCombinationDuringThePeriod" xml:lang="en" id="label_CashOutDueToBusinessCombinationDuringThePeriod_5">Cash flows used in obtaining control of subsidiaries or other businesses </link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CashOutDueToBusinessCombinationDuringThePeriod_4" xlink:to="label_CashOutDueToBusinessCombinationDuringThePeriod_5" xlink:title="label: CashOutDueToBusinessCombinationDuringThePeriod to label_CashOutDueToBusinessCombinationDuringThePeriod"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_NetChangeInFinancialAssetsAndLiabilities" xlink:label="NetChangeInFinancialAssetsAndLiabilities" xlink:title="NetChangeInFinancialAssetsAndLiabilities"/>
    <link:label xlink:type="resource" xlink:label="label_NetChangeInFinancialAssetsAndLiabilities_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NetChangeInFinancialAssetsAndLiabilities" xml:lang="it" id="label_NetChangeInFinancialAssetsAndLiabilities_2">Variazione netta delle attività e passività finanziarie</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetChangeInFinancialAssetsAndLiabilities" xlink:to="label_NetChangeInFinancialAssetsAndLiabilities_2" xlink:title="label: NetChangeInFinancialAssetsAndLiabilities to label_NetChangeInFinancialAssetsAndLiabilities"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_NetChangeInFinancialAssetsAndLiabilities" xlink:label="NetChangeInFinancialAssetsAndLiabilities_3" xlink:title="NetChangeInFinancialAssetsAndLiabilities"/>
    <link:label xlink:type="resource" xlink:label="label_NetChangeInFinancialAssetsAndLiabilities_4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_NetChangeInFinancialAssetsAndLiabilities" xml:lang="it" id="label_NetChangeInFinancialAssetsAndLiabilities_4">I flussi finanziari in entrata (in uscita), classificati come attività di finanziamento, che l'entità non presenta separatamente nello stesso prospetto o nota. </link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetChangeInFinancialAssetsAndLiabilities_3" xlink:to="label_NetChangeInFinancialAssetsAndLiabilities_4" xlink:title="label: NetChangeInFinancialAssetsAndLiabilities to label_NetChangeInFinancialAssetsAndLiabilities"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_RepaymentOfLeaseLiabilitiesCollectionOfAssetsForLeases" xlink:label="RepaymentOfLeaseLiabilitiesCollectionOfAssetsForLeases" xlink:title="RepaymentOfLeaseLiabilitiesCollectionOfAssetsForLeases"/>
    <link:label xlink:type="resource" xlink:label="label_RepaymentOfLeaseLiabilitiesCollectionOfAssetsForLeases_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RepaymentOfLeaseLiabilitiesCollectionOfAssetsForLeases" xml:lang="it" id="label_RepaymentOfLeaseLiabilitiesCollectionOfAssetsForLeases_2">(Rimborso) di passività/incasso di attività per leasing</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RepaymentOfLeaseLiabilitiesCollectionOfAssetsForLeases" xlink:to="label_RepaymentOfLeaseLiabilitiesCollectionOfAssetsForLeases_2" xlink:title="label: RepaymentOfLeaseLiabilitiesCollectionOfAssetsForLeases to label_RepaymentOfLeaseLiabilitiesCollectionOfAssetsForLeases"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_RepaymentOfLeaseLiabilitiesCollectionOfAssetsForLeases" xlink:label="RepaymentOfLeaseLiabilitiesCollectionOfAssetsForLeases_3" xlink:title="RepaymentOfLeaseLiabilitiesCollectionOfAssetsForLeases"/>
    <link:label xlink:type="resource" xlink:label="label_RepaymentOfLeaseLiabilitiesCollectionOfAssetsForLeases_4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_RepaymentOfLeaseLiabilitiesCollectionOfAssetsForLeases" xml:lang="it" id="label_RepaymentOfLeaseLiabilitiesCollectionOfAssetsForLeases_4">I flussi finanziari in entrata (in uscita), classificati come attività di finanziamento, che l'entità non presenta separatamente nello stesso prospetto o nota. </link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RepaymentOfLeaseLiabilitiesCollectionOfAssetsForLeases_3" xlink:to="label_RepaymentOfLeaseLiabilitiesCollectionOfAssetsForLeases_4" xlink:title="label: RepaymentOfLeaseLiabilitiesCollectionOfAssetsForLeases to label_RepaymentOfLeaseLiabilitiesCollectionOfAssetsForLeases"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_StatementOfIncomeStatementTable" xlink:label="StatementOfIncomeStatementTable_2" xlink:title="StatementOfIncomeStatementTable"/>
    <link:label xlink:type="resource" xlink:label="label_StatementOfIncomeStatementTable_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StatementOfIncomeStatementTable" xml:lang="it" id="label_StatementOfIncomeStatementTable_2">Prospetto di Conto Economico [table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementOfIncomeStatementTable_2" xlink:to="label_StatementOfIncomeStatementTable_2" xlink:title="label: StatementOfIncomeStatementTable to label_StatementOfIncomeStatementTable"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_StatementOfIncomeStatementLineItems" xlink:label="StatementOfIncomeStatementLineItems_2" xlink:title="StatementOfIncomeStatementLineItems"/>
    <link:label xlink:type="resource" xlink:label="label_StatementOfIncomeStatementLineItems_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StatementOfIncomeStatementLineItems" xml:lang="it" id="label_StatementOfIncomeStatementLineItems_2">Prospetto di Conto Economico [line items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementOfIncomeStatementLineItems_2" xlink:to="label_StatementOfIncomeStatementLineItems_2" xlink:title="label: StatementOfIncomeStatementLineItems to label_StatementOfIncomeStatementLineItems"/>
    <link:loc xlink:type="locator" xlink:href="ovs-2023-01-31.xsd#ovs_ProfitLossAttributableToOwnersOfParentMember" xlink:label="ProfitLossAttributableToOwnersParentMember" xlink:title="ProfitLossAttributableToOwnersParentMember"/>
    <link:label xlink:type="resource" xlink:label="label_ProfitLossAttributableToOwnersParentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ProfitLossAttributableToOwnersParentMember" xml:lang="it" id="label_ProfitLossAttributableToOwnersParentMember">Utile (perdita), attribuibile ai soci della controllante [member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProfitLossAttributableToOwnersParentMember" xlink:to="label_ProfitLossAttributableToOwnersParentMember" xlink:title="label: ProfitLossAttributableToOwnersParentMember to label_ProfitLossAttributableToOwnersParentMember"/>
  </link:labelLink>
</link:linkbase>
