@prefix dct: . @prefix ns1: . @prefix ns2: . @prefix rdfs: . @prefix skos: . a skos:Concept ; dct:created "2018-03-13" ; dct:modified "2018-04-16" ; ns1:hasProfile , , ; ns2:status ; rdfs:seeAlso ; skos:definition "The temporal reference system package in the ORM provides elements for describing temporal reference systems, e.g., calendars and clocks."@en ; skos:prefLabel "temporal reference system"@en .