@prefix skos: . @prefix isothes: . @prefix rdr: . @prefix inist: . skos:prefLabel "Material / Product / Substance"@en, "Matériau / Produit / Substance"@fr ; a isothes:ConceptGroup, skos:Collection ; skos:member rdr:-M1JZHJFT-K . rdr:-M1JZHJFT-K skos:inScheme rdr: ; skos:exactMatch ; skos:hiddenLabel "Alúmina"@es, "Alumine"@fr, "Alumina"@en ; inist:semCategory "Matériau / Produit / Substance"@fr, "Material / Product / Substance"@en ; inist:domain "Mineral chemistry"@en, "Chimie minérale"@fr ; skos:prefLabel "alumina"@en, "alúmina"@es, "alumine"@fr ; a skos:Concept . rdr: a skos:ConceptScheme .