Subject Predicate Object
http://lod.geodan.nl/basisreg/bag/SpatialExtent http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://www.opengis.net/ont/geosparql#Geometry
http://lod.geodan.nl/basisreg/bag/SpatialExtent http://www.opengis.net/ont/geosparql#asWKT "POLYGON((3.307950 50.750370,3.307950 53.576420,7.227490 53.576420,7.227490 50.750360,3.307950 50.750360))"^^<http://www.openlinksw.com/schemas/virtrdf#Geometry>