@prefix gist: <https://w3id.org/semanticarts/ns/ontology/gist/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

gist:ContemporaryEvent a owl:Class ;
    rdfs:label "Contemporary Event"^^xsd:string ;
    rdfs:comment "DEFINITION: An event that has started but has not yet ended."^^xsd:string,
        "NOTE: When the event actually ends, it will cease being contemporary."^^xsd:string ;
    rdfs:isDefinedBy <https://w3id.org/semanticarts/ontology/gistCore14.1.0> ;
    rdfs:subClassOf gist:Event ;
    owl:equivalentClass [ a owl:Class ;
            owl:intersectionOf ( gist:Event [ a owl:Restriction ;
                        owl:cardinality "1"^^xsd:nonNegativeInteger ;
                        owl:onProperty gist:actualStartDateTime ] [ a owl:Restriction ;
                        owl:maxCardinality "0"^^xsd:nonNegativeInteger ;
                        owl:onProperty gist:actualEndDateTime ] ) ] ;
    skos:definition "An event that has started but has not yet ended."^^xsd:string ;
    skos:prefLabel "Contemporary Event"^^xsd:string ;
    skos:scopeNote "When the event actually ends, it will cease being contemporary."^^xsd:string .