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

<http://astrothesaurus.org/uat/672>
  skos:prefLabel "Gravitational microlensing"@en ;
  a skos:Concept ;
  skos:narrower <http://astrothesaurus.org/uat/1318> .

<http://astrothesaurus.org/uat/1318>
  skos:broader <http://astrothesaurus.org/uat/672> ;
  skos:prefLabel "Quasar microlensing"@en ;
  a skos:Concept .