@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:-XVDNSQHT-3
  skos:prefLabel "helium(2+)"@en ;
  a skos:Concept ;
  skos:narrower kfp:-T9XHVCXQ-5 .

kfp:-T9XHVCXQ-5
  owl:sameAs obo:CHEBI_30216 ;
  skos:hiddenLabel "(4)He(2+)"@en, "alpha"@en ;
  a skos:Concept ;
  skos:inScheme kfp: ;
  skos:broader kfp:-XVDNSQHT-3, kfp:-T61SGCGM-D ;
  skos:prefLabel "alpha-particle"@en ;
  skos:altLabel "helium-4(2+)"@en .

kfp: a skos:ConceptScheme .
kfp:-
  a isothes:ConceptGroup ;
  skos:prefLabel "3_STAR"@en ;
  skos:member kfp:-T9XHVCXQ-5 .

kfp:-T61SGCGM-D
  skos:prefLabel "atomic nucleus"@en ;
  a skos:Concept ;
  skos:narrower kfp:-T9XHVCXQ-5 .