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

<http://astrothesaurus.org/uat/612>
  skos:prefLabel "Galaxy physics"@en ;
  a skos:Concept ;
  skos:narrower <http://astrothesaurus.org/uat/620> .

<http://astrothesaurus.org/uat/620>
  skos:broader <http://astrothesaurus.org/uat/612> ;
  skos:prefLabel "Galaxy spurs"@en ;
  a skos:Concept .