@prefix dct: . @prefix ns1: . @prefix ns2: . @prefix ns3: . @prefix rdfs: . @prefix skos: . a skos:Concept ; ns1:source "ISO 19101" ; dct:created "2018-03-13" ; dct:modified "2018-04-16" ; ns2:hasProfile , , ; ns3:status ; rdfs:seeAlso ; skos:definition "Stratum within a set of layered levels in which data is recorded that conforms to definitions of types found at the application model level"@en ; skos:prefLabel "data level"@en .