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

<http://astrothesaurus.org/uat/255>
  skos:prefLabel "Close encounters"@en ;
  a skos:Concept ;
  skos:narrower <http://astrothesaurus.org/uat/1162> .

<http://astrothesaurus.org/uat/1162>
  skos:altLabel "Opik's theory"@en, "Öpik theory"@en, "Öpik's theory"@en ;
  skos:broader <http://astrothesaurus.org/uat/255> ;
  skos:prefLabel "Opik theory"@en ;
  a skos:Concept .