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

<http://astrothesaurus.org/uat/347>
  skos:altLabel "D region"@en ;
  skos:broader <http://astrothesaurus.org/uat/860> ;
  skos:prefLabel "D layer"@en ;
  a skos:Concept .

<http://astrothesaurus.org/uat/860>
  skos:prefLabel "Earth ionosphere"@en ;
  a skos:Concept ;
  skos:narrower <http://astrothesaurus.org/uat/347> .