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

<http://astrothesaurus.org/uat/836>
  skos:prefLabel "Interstellar dust"@en ;
  a skos:Concept ;
  skos:narrower <http://astrothesaurus.org/uat/1456> .

<http://astrothesaurus.org/uat/1456>
  skos:broader <http://astrothesaurus.org/uat/836> ;
  skos:prefLabel "Silicate grains"@en ;
  a skos:Concept .