@prefix envthes: <http://vocabs.lter-europe.net/EnvThes/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

envthes:10240 skos:narrower envthes:20452, envthes:20451 .
envthes:20452
  skos:prefLabel "field laboratory"@en ;
  a skos:Concept ;
  skos:broader envthes:10240 .

envthes:20451
  skos:prefLabel "laboratory"@en ;
  a skos:Concept ;
  skos:broader envthes:10240 .