@prefix rdr: <http://data.loterre.fr/ark:/67375/RDR> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix inist: <http://www.inist.fr/Ontology#> .
@prefix isothes: <http://purl.org/iso25964/skos-thes#> .

rdr: a skos:ConceptScheme .
rdr:-CNP2M7QX-7
  inist:semCategory "Machine / Equipement"@fr, "Machine / Equipment"@en ;
  inist:domain "Electronique"@fr, "Electronics"@en ;
  skos:hiddenLabel "Audio system"@en, "Sistema audio"@es, "Système audio"@fr, "Audio systems"@en ;
  skos:prefLabel "sistema audio"@es, "système audio"@fr, "audio system"@en ;
  skos:inScheme rdr: ;
  a skos:Concept .

<http://data.loterre.fr/ark:/67375/RDR/EQUI>
  skos:prefLabel "Machine / Equipement"@fr, "Machine / Equipment"@en ;
  a isothes:ConceptGroup, skos:Collection ;
  skos:member rdr:-CNP2M7QX-7 .