@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix ti: <http://www.ontologydesignpatterns.org/cp/owl/timeinterval.owl#> .

ti:hasIntervalDate a owl:DatatypeProperty ;
    rdfs:label "has interval date"@en ;
    rdfs:comment "A date value assigned to a time interval."@en ;
    rdfs:domain ti:TimeInterval ;
    rdfs:isDefinedBy ti: .