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

blh:-MATE
  isothes:subGroup blh:-MATEX, blh:-MATO ;
  isothes:superGroup blh:-MMAT ;
  a isothes:ConceptGroup ;
  skos:inScheme blh: ;
  skos:prefLabel "Material / Product / Substance"@en, "Matériau / Produit / Substance"@fr .

blh: a skos:ConceptScheme .
blh:-MATO
  skos:prefLabel "Organic material"@en, "Matériau organique"@fr ;
  a isothes:ConceptGroup ;
  isothes:superGroup blh:-MATE .

blh:-MATEX
  skos:prefLabel "Matériau / Produit / Substance_Divers"@fr, "Material / Product / Substance_Miscellaneous"@en ;
  a isothes:ConceptGroup ;
  isothes:superGroup blh:-MATE .

blh:-MMAT
  skos:prefLabel "Matériau / Matière / Etat de la matière"@fr, "Material / Matter / State of matter"@en ;
  a isothes:ConceptGroup ;
  isothes:subGroup blh:-MATE .