@prefix n9j: <http://data.loterre.fr/ark:/67375/N9J> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix isothes: <http://purl.org/iso25964/skos-thes#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .

n9j:-HCCPZMGP-M
  skos:prefLabel "pollution"@en ;
  a skos:Concept ;
  skos:narrower n9j:-J6559WZC-P .

n9j: a skos:ConceptScheme .
n9j:-SL18THDM-6
  skos:prefLabel "resources and conservation"@en ;
  a skos:Concept ;
  skos:narrower n9j:-J6559WZC-P .

n9j:-concepts
  a isothes:ConceptGroup ;
  skos:prefLabel "concepts"@en ;
  skos:member n9j:-J6559WZC-P .

n9j:-FW1K5LJ3-K
  skos:prefLabel "liquid fuels"@en ;
  a skos:Concept ;
  skos:narrower n9j:-J6559WZC-P .

n9j:-J6559WZC-P
  owl:sameAs <https://concepts.sagepub.com/social-science/concept/petroleum> ;
  skos:definition "Petroleum, or crude oil, is a nonrenewable natural resource that has had a tremendous beneficial influence on human society. With a name derived from Latin petra (rock) and oleum (oil), petroleum represents the world's most important energy resource. [Source: Encyclopedia of Environment and Society; Petroleum]"@en ;
  a skos:Concept ;
  skos:inScheme n9j: ;
  skos:broader n9j:-FW1K5LJ3-K, n9j:-SL18THDM-6, n9j:-HCCPZMGP-M ;
  skos:prefLabel "petroleum"@en .