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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_grbt_CoutDeLaDetteFinanciereBrute" xlink:to="lab_grbt_CoutDeLaDetteFinanciereBrute" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities_693bf2e4-5fe2-4d66-af6e-56944b52a472_totalLabel_fr" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="fr">Flux de trésorerie résultant (utilisés dans le cadre) d’activités de financement</link:label>
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    <link:label id="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_b38f0f79-2501-4dbb-a011-4e3270688f06_totalLabel_fr" xlink:label="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="fr">Augmentation (diminution) de la trésorerie et des équivalents de trésorerie après effet des variations des taux de change</link:label>
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