@prefix skos: . @prefix isothes: . @prefix inist: . skos:prefLabel "Chemical compound"@en, "Composé chimique"@fr ; a isothes:ConceptGroup, skos:Collection ; skos:member . a skos:ConceptScheme . skos:inScheme ; skos:hiddenLabel "orthophosphates"@en, "Orthophosphate"@fr, "Orthophosphate"@en ; skos:prefLabel "orthophosphate"@fr, "orthophosphate"@en, "ortofosfato"@es ; a skos:Concept ; inist:semCategory "Chemical compound"@en, "Composé chimique"@fr .