@prefix so: <http://vocabs.lter-europe.net/so/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix iop: <https://w3id.org/iadopt/ont/> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

so:
  skos:prefLabel "eLTER SOs"@en ;
  a skos:ConceptScheme .

so:018
  skos:notation "SOBIO_018"@en ;
  skos:inScheme so: ;
  a iop:VariableSet, skos:Concept ;
  dc:contributor <https://orcid.org/0000-0002-7997-219X>, <https://orcid.org/0000-0003-2195-3997> ;
  skos:broader so:c4 ;
  skos:prefLabel "Birds, bats, frogs, insects using acoustic recording"@en ;
  dc:modified "2025-12-12"^^xsd:date ;
  dc:creator <http://purl.org/np/RAjk9ru697It_UawXK1gvq-mpaOdGlwyhNb9nF2tfEE2A> ;
  dc:created "2023-08-16"^^xsd:date .

so:c4
  skos:prefLabel "Biosphere"@en ;
  a skos:Concept ;
  skos:narrower so:018 ;
  skos:narrowMatch so:018 .