@prefix skos: . @prefix isothes: . @prefix inist: . skos:prefLabel "Elément chimique / Ion / Isotope / Corps simple"@fr, "Chemical element / Ion / Isotope / Simple body"@en ; a isothes:ConceptGroup, skos:Collection ; skos:member . skos:prefLabel "isótopo estable"@es, "stable isotope"@en, "isotope stable"@fr ; a skos:Concept ; skos:narrower . inist:semCategory "Elément chimique / Ion / Isotope / Corps simple"@fr, "Chemical element / Ion / Isotope / Simple body"@en ; skos:hiddenLabel "He 4-He 3"@fr ; a skos:Concept ; skos:inScheme ; skos:broader ; skos:prefLabel "He 4/He 3"@fr, "He-4/He-3"@en, "He-4/He-3"@es . a skos:ConceptScheme .