@prefix relations: <https://w3id.org/zpid/vocabs/relations/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .

relations:
  skos:prefLabel "Resource Relations"@en, "Ressourcenbeziehungen"@de ;
  a skos:ConceptScheme .

relations:isSummaryOf
  skos:broader relations:isDescriptionOf ;
  skos:narrower relations:isPlainLanguageSummeryOf, relations:isAbstractOf ;
  skos:scopeNote "Relates a work to another work that summarizes it, usually in an objective way, without offering an explicit opinion, viewpoint, evaluation or review."@en ;
  skos:inScheme relations: ;
  skos:prefLabel "is summary of"@en, "ist Zusammenfassung von"@de ;
  a rdf:Property, skos:Concept .

relations:isPlainLanguageSummeryOf
  skos:prefLabel "is plain language summary of"@en, "ist laienverständliche Zusammenfassung von"@de ;
  a rdf:Property, skos:Concept ;
  skos:broader relations:isSummaryOf .

relations:isDescriptionOf
  skos:prefLabel "is description of"@en, "ist Beschreibung von"@de ;
  a rdf:Property, skos:Concept ;
  skos:narrower relations:isSummaryOf .

relations:isAbstractOf
  skos:prefLabel "is abstract of"@en, "ist Abstract von"@de ;
  a rdf:Property, skos:Concept ;
  skos:broader relations:isSummaryOf .

relations:hasSummary owl:inverseOf relations:isSummaryOf .