@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:-GMCFFV98-5
  skos:prefLabel "medical treatments for obesity"@en ;
  a skos:Concept ;
  skos:narrower n9j:-WMHCR38F-W .

n9j:-QKP8Q5WK-J
  skos:prefLabel "drugs of abuse"@en ;
  a skos:Concept ;
  skos:narrower n9j:-WMHCR38F-W .

n9j:-DRZNSZBM-P
  skos:prefLabel "nervous system stimulants"@en ;
  a skos:Concept ;
  skos:narrower n9j:-WMHCR38F-W .

n9j: a skos:ConceptScheme .
n9j:-HKLT4H0K-Z
  skos:prefLabel "substance use and abuse"@en ;
  a skos:Concept ;
  skos:narrower n9j:-WMHCR38F-W .

n9j:-G8K6H7D9-L
  skos:prefLabel "types of drugs"@en ;
  a skos:Concept ;
  skos:narrower n9j:-WMHCR38F-W .

n9j:-MB48CG9B-5
  skos:prefLabel "drug classification"@en ;
  a skos:Concept ;
  skos:narrower n9j:-WMHCR38F-W .

n9j:-L4B5G7MD-W
  skos:prefLabel "health sciences"@en ;
  a skos:Concept ;
  skos:narrower n9j:-WMHCR38F-W .

n9j:-concepts
  a isothes:ConceptGroup ;
  skos:prefLabel "concepts"@en ;
  skos:member n9j:-WMHCR38F-W .

n9j:-WMHCR38F-W
  skos:broader n9j:-QKP8Q5WK-J, n9j:-DRZNSZBM-P, n9j:-GMCFFV98-5, n9j:-MB48CG9B-5, n9j:-L4B5G7MD-W, n9j:-G8K6H7D9-L, n9j:-HKLT4H0K-Z ;
  owl:sameAs <https://concepts.sagepub.com/social-science/concept/caffeine> ;
  skos:prefLabel "caffeine"@en ;
  skos:definition "Caffeine is the most widely used psychoactive drug today. According to the latest coffee consumption statistics, coffee is the most popular beverage worldwide with over 400 billion cups consumed each year. [Source: Encyclopedia of Drug Policy; Caffeine]"@en ;
  a skos:Concept ;
  skos:inScheme n9j: .