@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix void: <http://rdfs.org/ns/void#> .
@prefix gnd: <https://d-nb.info/gnd/> .
@prefix zbwext: <http://zbw.eu/namespaces/zbw-extensions/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix ns0: <http://purl.org/ontology/gbv/> .
@prefix wd: <http://www.wikidata.org/entity/> .
@prefix dc: <http://purl.org/dc/terms/> .

skos:exactMatch
  rdfs:subPropertyOf skos:closeMatch ;
  skos:definition "skos:exactMatch is used to link two concepts, indicating a high degree of confidence that the concepts can be used interchangeably across a wide range of information retrieval applications. skos:exactMatch is a transitive property, and is a sub-property of skos:closeMatch."@en ;
  rdfs:comment "skos:exactMatch is disjoint with each of the properties skos:broadMatch and skos:relatedMatch."@en ;
  rdfs:label "has exact match"@en .

<http://dbpedia.org/resource/Voice_over_IP>
  rdfs:label "Voice over IP"@en, "IP-Telefonie"@de ;
  skos:prefLabel "Voice over IP"@en, "IP-Telefonie"@de ;
  skos:exactMatch <http://zbw.eu/stw/descriptor/19653-2> .

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

gnd:4770362-3
  rdfs:label "VoIP"@de, "Voice over IP"@de, "Webphoning"@de, "Netphoning"@de, "IP Telephony"@de, "Internettelefonie"@de, "Internet-Telefonie"@de ;
  skos:prefLabel "Internettelefonie"@de ;
  skos:relatedMatch <http://zbw.eu/stw/descriptor/19653-2> .

zbwext:Descriptor
  rdfs:label "Descriptor"@en ;
  a owl:Class .

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

<http://zbw.eu/stw/thsys/182563>
  skos:narrower <http://zbw.eu/stw/descriptor/19653-2> ;
  rdfs:label "W.19.04  Telecommunications"@en, "Telecommunications"@en, "W.19.04  Telekommunikation"@de, "Telekommunikation"@de ;
  a zbwext:Thsys, skos:Concept ;
  skos:notation "W.19.04" ;
  skos:prefLabel "W.19.04  Telecommunications"@en, "W.19.04  Telekommunikation"@de .

<http://zbw.eu/stw/descriptor/19653-2>
  ns0:gvkppn "091354293" ;
  rdfs:label "IP-Telefonie"@de, "VoIP"@en, "Internet-Telefonie"@de, "IP telephony"@en, "Internet telephony"@en, "Voice over IP"@en, "Internettelefonie"@de ;
  skos:broader <http://zbw.eu/stw/descriptor/13667-0>, <http://zbw.eu/stw/thsys/182563>, <http://zbw.eu/stw/descriptor/18655-3> ;
  a zbwext:Descriptor, skos:Concept ;
  skos:altLabel "VoIP"@en, "Internet-Telefonie"@de, "Voice over IP"@en, "IP telephony"@en, "IP-Telefonie"@de ;
  skos:exactMatch wd:Q81945, gnd:4742864-8, <http://dbpedia.org/resource/Voice_over_IP> ;
  skos:prefLabel "Internet telephony"@en, "Internettelefonie"@de ;
  dc:isPartOf <http://zbw.eu/stw> ;
  skos:relatedMatch gnd:4770362-3 ;
  skos:inScheme <http://zbw.eu/stw> .

<http://zbw.eu/stw/descriptor/18655-3>
  skos:narrower <http://zbw.eu/stw/descriptor/19653-2> ;
  skos:prefLabel "Telekommunikationsdienst"@de, "Telecommunications services"@en ;
  a skos:Concept, zbwext:Descriptor ;
  rdfs:label "Fax"@en, "Telecommunications services"@en, "Telefax"@de, "Videotext"@de, "Telekommunikationsdienst"@de .

<http://zbw.eu/stw/descriptor/13667-0>
  rdfs:label "Telephonausrüstung"@de, "Telephone"@en, "Bildtelefon"@de, "Telefonapparat"@de, "Video telephone"@en, "Bildtelephon"@de, "Anrufbeantworter"@de, "Telefonie"@de, "Phone"@en, "Telefonausrüstung"@de, "Telephony"@en, "Telefon"@de, "Fernsprechausrüstung"@de, "Telephon"@de ;
  a zbwext:Descriptor, skos:Concept ;
  skos:narrower <http://zbw.eu/stw/descriptor/19653-2> ;
  skos:prefLabel "Telefon"@de, "Telephone"@en .

gnd:4742864-8
  rdfs:label "Computer Telephony Integration"@de, "CTI"@de, "Computer-Telephone-Integration"@de, "Computerunterstütztes Telefonieren"@de ;
  skos:prefLabel "Computer Telephony Integration"@de ;
  skos:exactMatch <http://zbw.eu/stw/descriptor/19653-2> .

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

skos:prefLabel
  rdfs:subPropertyOf rdfs:label ;
  skos:definition "The preferred lexical label for a resource, in a given language."@en ;
  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 .

skos:altLabel
  rdfs:subPropertyOf rdfs:label ;
  skos:definition "An alternative lexical label for a resource."@en ;
  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 .

skos:relatedMatch
  rdfs:subPropertyOf skos:related, skos:mappingRelation ;
  skos:definition "skos:relatedMatch is used to state an associative mapping link between two conceptual resources in different concept schemes."@en ;
  rdfs:label "has related match"@en .

wd:Q81945
  rdfs:label "IP-Telefonie"@de, "Internet Protocol telephony"@en, "Internettelefonie"@de, "IP telephony"@en, "VoIP"@en, "Internet-Telefonie"@de, "FoIP"@de, "broadband phone service"@en, "Voice-over-IP"@de, "DSL-Telefonie"@de, "VoIP-Telefonie"@de, "IP-Telephonie"@de, "Voice over IP"@de, "Voice over IP"@en, "IP Telefonie"@de, "Internettelephonie"@de, "broadband telephony"@en, "VOIP"@en, "VOIP"@de, "Voice over Internet Protocol"@de, "Voice over Internet Protocol"@en, "DSL Telefonie"@de, "IP-Telephon"@de, "Internet-Protokoll-Telefonie"@de ;
  skos:prefLabel "IP-Telefonie"@de, "Voice over IP"@en ;
  skos:exactMatch <http://zbw.eu/stw/descriptor/19653-2> .

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