@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix mmd: <https://vocab.met.no/mmd/> .
@prefix isothes: <http://purl.org/iso25964/skos-thes#> .

<https://vocab.met.no/mmd/Keywords_Vocabulary/None>
  skos:prefLabel "None"@en ;
  skos:definition "This tag should be used to provide keywords that do not belong to a controlled vocabulary."@en ;
  a skos:Concept .

mmd:Keywords_Vocabulary
  a isothes:ConceptGroup, skos:Collection ;
  skos:prefLabel "Keywords Vocabulary"@en ;
  skos:member <https://vocab.met.no/mmd/Keywords_Vocabulary/None> .