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

<http://astrothesaurus.org/uat/692>
  skos:prefLabel "H beta photometry"@en ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/1088> .

<http://astrothesaurus.org/uat/691>
  skos:prefLabel "H alpha photometry"@en ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/1088> .

<http://astrothesaurus.org/uat/1088>
  skos:broader <http://astrothesaurus.org/uat/1233> ;
  skos:prefLabel "Narrow band photometry"@en ;
  skos:narrower <http://astrothesaurus.org/uat/691>, <http://astrothesaurus.org/uat/692> ;
  a skos:Concept .

<http://astrothesaurus.org/uat/1233>
  skos:prefLabel "Photometric systems"@en ;
  a skos:Concept ;
  skos:narrower <http://astrothesaurus.org/uat/1088> .