@prefix dct: . @prefix ns1: . @prefix ns2: . @prefix ns3: . @prefix rdfs: . @prefix skos: . a skos:Concept ; ns3:creator "Observations and Measurements 2.0 SWG" ; ns3:source ; dct:created "2012-02-14" ; ns1:hasProfile ; ns2:status ; rdfs:seeAlso ; skos:definition "None"@en ; skos:exactMatch , ; skos:prefLabel "Truth Observation"@en .