@prefix skos: . @prefix isothes: . skos:narrower ; skos:broader ; skos:prefLabel "academic libraries"@en ; a skos:Concept . skos:prefLabel "college libraries"@en ; a skos:Concept ; skos:broader . a skos:Collection, isothes:ConceptGroup ; skos:prefLabel "concepts"@en ; skos:member . skos:prefLabel "libraries"@en ; a skos:Concept ; skos:narrower .