@prefix dc: <http://purl.org/dc/terms/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix cast: <http://onto.nerc.ac.uk/CAST/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

dc:creator rdfs:label "Creator" .
dc:created rdfs:label "Created" .
dc:contributor rdfs:label "Contributor" .
dc:modified rdfs:label "Modified" .
cast:217
  a skos:Concept ;
  dc:contributor "dgwr" ;
  dc:created "2012-01-05T14:45:02Z"^^xsd:dateTime ;
  dc:creator "dgwr" ;
  dc:modified "2019-05-09T16:00:18.197+00:00"^^xsd:dateTime ;
  skos:altLabel "2,2´,4,4´,5,5´-Hexachlorobiphenyl"@en ;
  skos:broader cast:199 ;
  skos:definition "A polychlorinated biphenyl congener identified with CAS number 35065-27-1 and with IUPAC name 2,2',4,4',5,5'-Hexachlorobiphenyl"@en ;
  skos:prefLabel "PCB156"@en .

cast:199
  a skos:Concept ;
  skos:narrower cast:217 ;
  skos:prefLabel "total PCBs"@en .