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

<http://astrothesaurus.org/uat/1257>
  skos:prefLabel "Planetary system formation"@en ;
  a skos:Concept ;
  skos:narrower <http://astrothesaurus.org/uat/1241> .

<http://astrothesaurus.org/uat/1241>
  skos:related <http://astrothesaurus.org/uat/1300> ;
  skos:broader <http://astrothesaurus.org/uat/1257> ;
  skos:prefLabel "Planet formation"@en ;
  a skos:Concept .

<http://astrothesaurus.org/uat/1300>
  skos:prefLabel "Protoplanetary disks"@en ;
  a skos:Concept ;
  skos:related <http://astrothesaurus.org/uat/1241> .