@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 .

skos:narrower
  rdfs:comment "Narrower concepts are typically rendered as children in a concept hierarchy (tree)."@en ;
  rdfs:label "has narrower"@en ;
  rdfs:subPropertyOf skos:narrowerTransitive ;
  skos:definition "Relates a concept to a concept that is more specific in meaning."@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:13327-3
  a skos:Concept, <http://zbw.eu/namespaces/zbw-extensions/Descriptor> ;
  ns0:gvkppn "091345685" ;
  skos:altLabel "Water purification"@en, "Aufbereitung von Wasser"@de, "Wasseraufbereitungsanlage"@de, "Wasseraufbereitungstechnik"@de, "Water quality improvement"@en, "Water treatment plant"@en ;
  skos:broader <http://zbw.eu/stw/thsys/71011>, stw:12979-0 ;
  skos:inScheme <http://zbw.eu/stw> ;
  skos:narrower stw:13331-5 ;
  skos:prefLabel "Water treatment"@en, "Wasseraufbereitung"@de ;
  skos:related stw:18071-1, stw:15734-1, stw:30459-3 ;
  ns1:altLabelRelated "Entsalzungsanlage"@de, "Entsalzung"@de .

stw:30459-3
  a ns1:Descriptor, skos:Concept ;
  skos:prefLabel "Wasserqualität"@de, "Water quality"@en ;
  skos:related stw:13327-3 .

stw:15734-1
  a ns1:Descriptor, skos:Concept ;
  skos:prefLabel "Gewässerschutz"@de, "Water conservation"@en ;
  skos:related stw:13327-3 .

stw:13331-5
  a ns1:Descriptor, skos:Concept ;
  skos:broader stw:13327-3 ;
  skos:prefLabel "Wastewater treatment"@en, "Abwasseraufbereitung"@de .

stw:18071-1
  a ns1:Descriptor, skos:Concept ;
  skos:prefLabel "Contaminated site cleanup"@en, "Altlastensanierung"@de ;
  skos:related stw:13327-3 .

stw:12979-0
  a ns1:Descriptor, skos:Concept ;
  skos:narrower stw:13327-3 ;
  skos:prefLabel "Water industry"@en, "Wasserwirtschaft"@de .

<http://zbw.eu/stw/thsys/71011>
  a ns1:Thsys, skos:Concept ;
  rdfs:label "Water Industry"@en, "Wasserwirtschaft"@de ;
  skos:narrower stw:13327-3 ;
  skos:notation "W.04.02" ;
  skos:prefLabel "W.04.02  Water Industry"@en, "W.04.02  Wasserwirtschaft"@de .