@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/pneumatic_tube_systems>
  skos:prefLabel "pneumatic tube systems"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/building_audio_communications_systems> .

<https://concepts.sagepub.com/social-science/concept/building_audio_communications_systems>
  skos:narrower <https://concepts.sagepub.com/social-science/concept/staff_location_and_call_systems>, <https://concepts.sagepub.com/social-science/concept/public_address_systems>, <https://concepts.sagepub.com/social-science/concept/pneumatic_tube_systems>, <https://concepts.sagepub.com/social-science/concept/paging_systems>, <https://concepts.sagepub.com/social-science/concept/intercom> ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/building_communication_services> ;
  skos:prefLabel "building audio communications systems"@en ;
  a skos:Concept .

<https://concepts.sagepub.com/social-science/concept/staff_location_and_call_systems>
  skos:prefLabel "staff location and call systems"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/building_audio_communications_systems> .

<https://concepts.sagepub.com/social-science/concept/building_communication_services>
  skos:prefLabel "building communication services"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/building_audio_communications_systems> .

<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/building_audio_communications_systems> .

<https://concepts.sagepub.com/social-science/concept/paging_systems>
  skos:prefLabel "paging systems"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/building_audio_communications_systems> .

<https://concepts.sagepub.com/social-science/concept/public_address_systems>
  skos:prefLabel "public address systems"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/building_audio_communications_systems> .

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