@prefix rdfs: . @prefix isac: . isac:chondroitin_sulphate_ rdfs:label "chondroitin sulphate" . @prefix owl: . @prefix dbr: . isac:chondroitin_sulphate_ owl:sameAs dbr:Chondroitin_sulfate . @prefix isao: . isac:chondroitin_sulphate_ isao:hasHead "sulphate" ; isao:hasPreModifier "chondroitin" .