@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix isothes: <http://purl.org/iso25964/skos-thes#> .

<https://concepts.sagepub.com/social-science/concept/conceptgroup/concepts>
  a skos:Collection, isothes:ConceptGroup ;
  skos:prefLabel "concepts"@en ;
  skos:member <https://concepts.sagepub.com/social-science/concept/methadyl_acetate> .

<https://concepts.sagepub.com/social-science/concept/controlled_drugs>
  skos:prefLabel "controlled drugs"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/methadyl_acetate> .

<https://concepts.sagepub.com/social-science/concept/methadyl_acetate>
  skos:broader <https://concepts.sagepub.com/social-science/concept/drug_antagonists>, <https://concepts.sagepub.com/social-science/concept/controlled_drugs> ;
  skos:prefLabel "methadyl acetate"@en ;
  a skos:Concept .

<https://concepts.sagepub.com/social-science/concept/drug_antagonists>
  skos:prefLabel "drug antagonists"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/methadyl_acetate> .