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

<http://astrothesaurus.org/uat/1824>
  skos:broader <http://astrothesaurus.org/uat/1671> ;
  skos:prefLabel "X-ray surveys"@en ;
  a skos:Concept .

<http://astrothesaurus.org/uat/1671>
  skos:prefLabel "Surveys"@en ;
  a skos:Concept ;
  skos:narrower <http://astrothesaurus.org/uat/1824> .