@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix skos1: <http://www.w3.org/2008/05/skos#> .

skos1:ConceptScheme a owl:Class ;
    rdfs:label "concept scheme"@en ;
    rdfs:comment "A SKOS concept scheme can be viewed as an aggregation of one or more SKOS concepts."@en ;
    rdfs:isDefinedBy skos1: .