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

n9j:-S1GBN04G-L
  skos:prefLabel "codeine"@en ;
  a skos:Concept ;
  skos:broader n9j:-Z57BSW18-3 .

n9j: a skos:ConceptScheme .
n9j:-F0B67G7L-M
  skos:prefLabel "opiates"@en ;
  a skos:Concept ;
  skos:narrower n9j:-Z57BSW18-3 .

n9j:-Z57BSW18-3
  owl:sameAs <https://concepts.sagepub.com/social-science/concept/morphine_derivatives> ;
  skos:narrower n9j:-S1GBN04G-L, n9j:-B9CQZ48M-J ;
  a skos:Concept ;
  skos:inScheme n9j: ;
  skos:broader n9j:-F0B67G7L-M ;
  skos:prefLabel "morphine derivatives"@en .

n9j:-B9CQZ48M-J
  skos:prefLabel "heroin"@en ;
  a skos:Concept ;
  skos:broader n9j:-Z57BSW18-3 .

n9j:-concepts
  a isothes:ConceptGroup ;
  skos:prefLabel "concepts"@en ;
  skos:member n9j:-Z57BSW18-3 .