@prefix dc: . @prefix rdfs: . @prefix cast: . @prefix skos: . @prefix xsd: . dc:contributor rdfs:label "Contributor" . dc:modified rdfs:label "Modified" . dc:created rdfs:label "Created" . cast:199 skos:prefLabel "total PCBs"@en ; a skos:Concept ; skos:narrower cast:219 . cast:219 a skos:Concept ; dc:contributor "dgwr" ; skos:altLabel "2,3,3´,4,4´,5´-Hexachlorobiphenyl"@en ; skos:definition "A polychlorinated biphenyl congener identified with CAS number 69782-90-7 and with IUPAC name 2,3,3',4,4',5'-Hexachlorobiphenyl"@en ; skos:broader cast:199 ; dc:modified "2019-05-09T16:00:18.197+00:00"^^xsd:dateTime ; dc:created "2012-01-05T14:47:24Z"^^xsd:dateTime ; skos:prefLabel "PCB167"@en ; dc:creator "dgwr" . dc:creator rdfs:label "Creator" .