@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/natural_ventilation>
  skos:prefLabel "natural ventilation"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/ventilation_systems> .

<https://concepts.sagepub.com/social-science/concept/air_venting_systems>
  skos:prefLabel "air venting systems"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/ventilation_systems> .

<https://concepts.sagepub.com/social-science/concept/air_conditioning_services>
  skos:prefLabel "air conditioning services"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/ventilation_systems> .

<https://concepts.sagepub.com/social-science/concept/ventilation_systems>
  skos:narrower <https://concepts.sagepub.com/social-science/concept/natural_ventilation>, <https://concepts.sagepub.com/social-science/concept/air_venting_systems> ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/air_conditioning_services> ;
  skos:prefLabel "ventilation systems"@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/ventilation_systems> .