@prefix xd4: <http://data.loterre.fr/ark:/67375/XD4> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix uneskos: <http://purl.org/umu/uneskos#> .
@prefix isothes: <http://purl.org/iso25964/skos-thes#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .

xd4:-NLFHG6XG-Z
  skos:prefLabel "cuero"@es, "cuir"@fr, "leather"@en ;
  a skos:Concept ;
  uneskos:memberOf xd4:-MATO .

xd4:-MATE
  skos:prefLabel "Material / Product / Substance"@en, "Matériau / Produit / Substance"@fr ;
  a isothes:ConceptGroup ;
  isothes:subGroup xd4:-MATO .

xd4:-MATO
  skos:member xd4:-MD89PMZW-P, xd4:-DQXSL7X4-V, xd4:-NLFHG6XG-Z, xd4:-JVRT1BHX-1 ;
  skos:prefLabel "Matériau organique"@fr, "Organic material"@en ;
  rdfs:comment "Nombre de membres : 4"@fr, "Number of members: 4"@en ;
  isothes:superGroup xd4:-MATE ;
  skos:inScheme xd4: ;
  a isothes:ConceptGroup .

xd4:-DQXSL7X4-V
  skos:prefLabel "xilema"@es, "bois"@fr, "wood"@en ;
  a skos:Concept ;
  uneskos:memberOf xd4:-MATO .

xd4:-MD89PMZW-P
  skos:prefLabel "seda"@es, "soie"@fr, "silk"@en ;
  a skos:Concept ;
  uneskos:memberOf xd4:-MATO .

xd4: a skos:ConceptScheme .
xd4:-JVRT1BHX-1
  skos:prefLabel "marfil"@es, "ivoire"@fr, "ivory"@en ;
  a skos:Concept ;
  uneskos:memberOf xd4:-MATO .