@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:-TKBK3RST-L
  skos:prefLabel "cocaine"@en ;
  a skos:Concept ;
  skos:narrower n9j:-W1WGBX7B-3 .

n9j: a skos:ConceptScheme .
n9j:-G8K6H7D9-L
  skos:prefLabel "types of drugs"@en ;
  a skos:Concept ;
  skos:narrower n9j:-W1WGBX7B-3 .

n9j:-W1WGBX7B-3
  owl:sameAs <https://concepts.sagepub.com/social-science/concept/crack> ;
  skos:definition "Crack is a form of cocaine that is made by mixing a salt form of cocaine (hydrochloride) with a base such as sodium bicarbonate (baking soda) to convert the salt form of the drug to the base form. This conversion produces a form of smokable cocaine. [Source: Encyclopedia of Drug Policy; Crack]"@en ;
  a skos:Concept ;
  skos:inScheme n9j: ;
  skos:broader n9j:-TKBK3RST-L, n9j:-PBZ2NL5L-F, n9j:-G8K6H7D9-L ;
  skos:prefLabel "crack"@en .

n9j:-PBZ2NL5L-F
  skos:prefLabel "controlled drugs"@en ;
  a skos:Concept ;
  skos:narrower n9j:-W1WGBX7B-3 .

n9j:-concepts
  a isothes:ConceptGroup ;
  skos:prefLabel "concepts"@en ;
  skos:member n9j:-W1WGBX7B-3 .