@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<http://astrothesaurus.org/uat/231>
  skos:altLabel "Cthonian planets"@en ;
  skos:broader <http://astrothesaurus.org/uat/498> ;
  skos:prefLabel "Chthonian planets"@en ;
  a skos:Concept .

<http://astrothesaurus.org/uat/498>
  skos:prefLabel "Exoplanets"@en ;
  a skos:Concept ;
  skos:narrower <http://astrothesaurus.org/uat/231> .