@prefix omtd: <http://w3id.org/meta-share/omtd-share/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .

omtd:KeywordExtraction
  skos:altLabel "Keyword spotting"@en, "Key phrase Extraction"@en, "Keyword search"@en, "KWS"@en ;
  skos:broader omtd:InformationExtraction ;
  a owl:NamedIndividual, omtd:Operation, skos:Concept ;
  skos:inScheme omtd:OperationScheme ;
  rdfs:comment "The task/process of identifying keywords (words deemed indicative of the topic/subject) in a text/corpus"@en ;
  rdfs:label "Keyword extraction"@en ;
  skos:prefLabel "Keyword extraction"@en .

skos:Concept a owl:Class .
omtd:InformationExtraction
  rdfs:label "Information Extraction"@en ;
  skos:prefLabel "Information Extraction"@en ;
  a owl:NamedIndividual, omtd:Operation, skos:Concept ;
  skos:narrower omtd:KeywordExtraction .

owl:NamedIndividual
  rdfs:label "Named individual"@en ;
  a owl:Class .

omtd:Operation
  rdfs:label "Operation"@en ;
  a owl:Class .

omtd:InformationExtractionAndInformationRetrievalCollection
  a owl:NamedIndividual, omtd:Operation, skos:Collection ;
  skos:prefLabel "Information Extraction and Information Retrieval Collection"@en ;
  skos:member omtd:KeywordExtraction .

omtd:OperationScheme
  rdfs:label "Operation Taxonomy"@en ;
  skos:prefLabel "Operation Taxonomy"@en ;
  a owl:NamedIndividual, skos:ConceptScheme .