@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix void: <http://rdfs.org/ns/void#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix stw: <http://zbw.eu/stw/descriptor/> .
@prefix ns0: <http://purl.org/ontology/gbv/> .
@prefix ns1: <http://zbw.eu/namespaces/zbw-extensions/> .

<http://zbw.eu/namespaces/zbw-extensions/altLabelRelated>
  rdfs:label "altLabelRelated"@en ;
  skos:definition """Lexical label for a related term which is
    not defined as a separate concept. Intended for use with
    skos:Concept, instead of using skos:altLabel."""@en .

<http://zbw.eu/namespaces/zbw-extensions/altLabelNarrower>
  rdfs:label "altLabelNarrower"@en ;
  skos:definition """Lexical label for a narrower term which is
    not defined as a separate concept (according to ISO 25964, 8.4), sometimes
    referred to as 'upward posting'. Intended for use with
    skos:Concept, instead of using skos:altLabel."""@en .

skos:hiddenLabel
  rdfs:comment "The range of skos:hiddenLabel is the class of RDF plain literals."@en, "skos:prefLabel, skos:altLabel and skos:hiddenLabel are pairwise disjoint properties."@en ;
  rdfs:label "hidden label"@en ;
  rdfs:subPropertyOf rdfs:label ;
  skos:definition "A lexical label for a resource that should be hidden when generating visual displays of the resource, but should still be accessible to free text search operations."@en .

skos:broader
  rdfs:comment "Broader concepts are typically rendered as parents in a concept hierarchy (tree)."@en ;
  rdfs:label "has broader"@en ;
  rdfs:subPropertyOf skos:broaderTransitive ;
  skos:definition "Relates a concept to a concept that is more general in meaning."@en .

skos:related
  rdfs:comment "skos:related is disjoint with skos:broaderTransitive"@en ;
  rdfs:label "has related"@en ;
  rdfs:subPropertyOf skos:semanticRelation ;
  skos:definition "Relates a concept to a concept with which there is an associative semantic relationship."@en .

<http://zbw.eu/stw>
  a void:Dataset, skos:ConceptScheme ;
  skos:prefLabel "Standard-Thesaurus Wirtschaft"@de, "STW Thesaurus for Economics"@en .

skos:inScheme
  rdfs:label "is in scheme"@en ;
  skos:definition "Relates a resource (for example a concept) to a concept scheme in which it is included."@en .

skos:altLabel
  rdfs:comment "skos:prefLabel, skos:altLabel and skos:hiddenLabel are pairwise disjoint properties."@en, "The range of skos:altLabel is the class of RDF plain literals."@en ;
  rdfs:label "alternative label"@en ;
  rdfs:subPropertyOf rdfs:label ;
  skos:definition "An alternative lexical label for a resource."@en .

skos:prefLabel
  rdfs:comment """skos:prefLabel, skos:altLabel and skos:hiddenLabel are pairwise
      disjoint properties."""@en, "The range of skos:prefLabel is the class of RDF plain literals."@en, "A resource has no more than one value of skos:prefLabel per language tag."@en ;
  rdfs:label "preferred label"@en ;
  rdfs:subPropertyOf rdfs:label ;
  skos:definition "The preferred lexical label for a resource, in a given language."@en .

<http://zbw.eu/namespaces/zbw-extensions/Descriptor>
  a owl:Class ;
  rdfs:label "Descriptor"@en .

skos:Concept
  a owl:Class ;
  rdfs:label "Concept"@en .

stw:14337-2
  a skos:Concept, <http://zbw.eu/namespaces/zbw-extensions/Descriptor> ;
  ns0:gvkppn "091370876" ;
  skos:altLabel "Kältemaschine"@de, "Kältetechnik"@de, "Kühltechnik"@de, "Kühlungssystem"@de ;
  skos:broader stw:15677-1, <http://zbw.eu/stw/thsys/70538> ;
  skos:hiddenLabel "Kälte"@de ;
  skos:inScheme <http://zbw.eu/stw> ;
  skos:prefLabel "Cooling"@en, "Kühlung"@de ;
  skos:related stw:14509-6, stw:14933-0 ;
  ns1:altLabelNarrower "Ventilator"@de, "Tiefkühlung"@de, "Air conditioning"@en, "Klimaanlage"@de ;
  ns1:altLabelRelated "Lüftungstechnik"@de, "Eiserzeugung"@de .

stw:14933-0
  a ns1:Descriptor, skos:Concept ;
  skos:prefLabel "Tiefkühlkost"@de, "Frozen food"@en ;
  skos:related stw:14337-2 .

stw:14509-6
  a ns1:Descriptor, skos:Concept ;
  skos:prefLabel "Refrigerator"@en, "Kühlschrank"@de ;
  skos:related stw:14337-2 .

<http://zbw.eu/stw/thsys/70538>
  a ns1:Thsys, skos:Concept ;
  rdfs:label "Energy and Water"@en, "Energie und Wasser"@de ;
  skos:narrower stw:14337-2 ;
  skos:notation "P.04" ;
  skos:prefLabel "P.04  Energy and Water"@en, "P.04  Energie und Wasser"@de .

stw:15677-1
  a ns1:Descriptor, skos:Concept ;
  skos:narrower stw:14337-2 ;
  skos:prefLabel "Verfahrenstechnik"@de, "Process engineering"@en .