@prefix dct: . @prefix ns1: . @prefix ns2: . @prefix ns3: . @prefix rdfs: . @prefix skos: . a skos:Concept ; ns1:source "null" ; dct:created "2018-03-13" ; dct:modified "2018-04-16" ; ns2:hasProfile , , ; ns3:status ; rdfs:seeAlso ; skos:definition "The Digital Elevation Model (DEM) only contains elevation data. Normally, the height data are arranged in a matrix. Also, vector based contour lines and spot elevations are considered as DEM. "@en ; skos:prefLabel "Digital Elevation Model"@en .