@prefix envthes: . @prefix skos: . @prefix owl: . @prefix dc: . @prefix xsd: . envthes: skos:prefLabel "EnvThes"@en ; a owl:Ontology, skos:ConceptScheme . envthes:20935 skos:prefLabel "variable"@en ; a skos:Concept ; skos:narrower envthes:30073 . envthes:30073 skos:inScheme envthes: ; a skos:Concept ; skos:broader envthes:20935 ; dc:modified "2019-02-14"^^xsd:date ; dc:created "2018-11-22"^^xsd:date ; skos:prefLabel "organic sediment mass"@en ; dc:creator "0000-0003-2195-3997"@en .