@prefix dct: . @prefix ns1: . @prefix ns2: . @prefix ns3: . @prefix rdfs: . @prefix skos: . a skos:Concept ; dct:created "2019-01-14" ; dct:modified "2019-01-14" ; ns2:hasProfile ; ns3:status ; rdfs:seeAlso ; skos:definition "The maximum wave period is the longest wave period measured during the observation period. A period is an interval of time"@en ; skos:exactMatch ; skos:prefLabel "sea surface wave maximum period"@en ; ns1:hadPrimarySource .