@prefix kfp: <http://data.loterre.fr/ark:/67375/KFP> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix obo: <http://purl.obolibrary.org/obo/> .
@prefix isothes: <http://purl.org/iso25964/skos-thes#> .

kfp: a skos:ConceptScheme .
kfp:-Z7NMT7FM-M
  owl:sameAs obo:CHEBI_134844 ;
  skos:hiddenLabel "hydroxymethanediphosphonic acid"@en, "hydroxymethylenediphosphonate"@en, "hydroxymethylenediphosphonic acid"@en, "oxidronate disodium"@en ;
  a skos:Concept ;
  skos:inScheme kfp: ;
  skos:broader kfp:-PCVJ3Z0H-G ;
  skos:prefLabel "oxidronic acid"@en .

kfp:-2_STAR
  a isothes:ConceptGroup ;
  skos:prefLabel "2_STAR"@en ;
  skos:member kfp:-Z7NMT7FM-M .

kfp:-PCVJ3Z0H-G
  skos:prefLabel "1,1-bis(phosphonic acid)"@en ;
  a skos:Concept ;
  skos:narrower kfp:-Z7NMT7FM-M .