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

<http://astrothesaurus.org/uat/241>
  skos:prefLabel "Circumstellar matter"@en ;
  a skos:Concept ;
  skos:narrower <http://astrothesaurus.org/uat/239> .

<http://astrothesaurus.org/uat/239>
  skos:broader <http://astrothesaurus.org/uat/241> ;
  skos:prefLabel "Circumstellar grains"@en ;
  a skos:Concept .