@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix time: <http://www.w3.org/2006/time#> .

time:Interval a owl:Class ;
    rdfs:label "interval"@en,
        "time interval"@en ;
    rdfs:comment "A temporal entity with an extent or duration."@en,
        "The interval of research years that it is taken into consideration (e.g., the first 5/10 years)."@en ;
    rdfs:isDefinedBy time: ;
    rdfs:subClassOf time:TemporalEntity .