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

<http://astrothesaurus.org/uat/809>
  skos:prefLabel "Intergalactic clouds"@en ;
  a skos:Concept ;
  skos:narrower <http://astrothesaurus.org/uat/981> .

<http://astrothesaurus.org/uat/981>
  skos:broader <http://astrothesaurus.org/uat/809> ;
  skos:prefLabel "Lyman limit systems"@en ;
  a skos:Concept .