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

<http://astrothesaurus.org/uat/205>
  skos:prefLabel "Catalogs"@en, "Catalogues"@en-GB ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/90> .

<http://astrothesaurus.org/uat/26>
  skos:prefLabel "Almanacs"@en ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/90> .

<http://astrothesaurus.org/uat/1671>
  skos:prefLabel "Surveys"@en ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/90> .

<http://astrothesaurus.org/uat/464>
  skos:prefLabel "Ephemerides"@en ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/90> .

<http://astrothesaurus.org/uat/83>
  skos:prefLabel "Astronomy databases"@en ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/90> .

<http://astrothesaurus.org/uat/537>
  skos:prefLabel "Finding lists"@en ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/90> .

<http://astrothesaurus.org/uat/90>
  skos:narrower <http://astrothesaurus.org/uat/205>, <http://astrothesaurus.org/uat/464>, <http://astrothesaurus.org/uat/83>, <http://astrothesaurus.org/uat/191>, <http://astrothesaurus.org/uat/1671>, <http://astrothesaurus.org/uat/1566>, <http://astrothesaurus.org/uat/537>, <http://astrothesaurus.org/uat/536>, <http://astrothesaurus.org/uat/26> ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/91> ;
  skos:prefLabel "Astronomical reference materials"@en .

<http://astrothesaurus.org/uat/191>
  skos:prefLabel "Calendars"@en ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/90> .

<http://astrothesaurus.org/uat/536>
  skos:prefLabel "Finding charts"@en ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/90> .

<http://astrothesaurus.org/uat/1566>
  skos:prefLabel "Star atlases"@en ;
  a skos:Concept ;
  skos:broader <http://astrothesaurus.org/uat/90> .

<http://astrothesaurus.org/uat/91>
  skos:prefLabel "Astronomical research"@en ;
  a skos:Concept ;
  skos:narrower <http://astrothesaurus.org/uat/90> .