@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:-B41TP0RP-H
  skos:prefLabel "drug policy conventions"@en ;
  a skos:Concept ;
  skos:narrower n9j:-HQ3PT96B-3 .

n9j:-events
  a isothes:ConceptGroup ;
  skos:prefLabel "events"@en ;
  skos:member n9j:-HQ3PT96B-3 .

n9j: a skos:ConceptScheme .
n9j:-HQ3PT96B-3
  owl:sameAs <https://concepts.sagepub.com/social-science/concept/1909_Shanghai_Conference> ;
  skos:definition "The 1909 Shanghai Conference was the first international conference to address the issue of drugs. Although the resolutions adopted at the conference were nonbinding, it resulted in the Hague Opium Conferences (1912–14) and the adoption of the 1912 International Opium Convention, which, combined with later treaties, restricted opium production and international trade. [Source: Encyclopedia of Drug Policy; 1909 Shanghai Conference]"@en ;
  a skos:Concept ;
  skos:inScheme n9j: ;
  skos:broader n9j:-B41TP0RP-H ;
  skos:prefLabel "1909 Shanghai Conference"@en .