@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/helicopters>
  skos:prefLabel "helicopters"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/aircraft> .

<https://concepts.sagepub.com/social-science/concept/airplanes>
  skos:prefLabel "airplanes"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/aircraft> .

<https://concepts.sagepub.com/social-science/concept/aircraft>
  skos:narrower <https://concepts.sagepub.com/social-science/concept/helicopters>, <https://concepts.sagepub.com/social-science/concept/airplanes>, <https://concepts.sagepub.com/social-science/concept/air_ambulances> ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/vehicles> ;
  skos:prefLabel "aircraft"@en ;
  a skos:Concept .

<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/aircraft> .

<https://concepts.sagepub.com/social-science/concept/vehicles>
  skos:prefLabel "vehicles"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/aircraft> .

<https://concepts.sagepub.com/social-science/concept/air_ambulances>
  skos:prefLabel "air ambulances"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/aircraft> .