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

skos:Concept a owl:Class ;
    rdfs:label "concept"@en ;
    rdfs:comment "An idea or notion; a unit of thought."@en ;
    rdfs:isDefinedBy skos: .