メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.488190476466 40.792944581399, 140.483729674893 40.7914140057107, 140.485013562736 40.7892768276801, 140.488283349882 40.7862471035693, 140.490522255993 40.7871563010718, 140.494909575914 40.7889624120595, 140.492866839625 40.791870563918, 140.491736814912 40.7918438755131, 140.491132995339 40.7918702350334, 140.490908824759 40.7918792100671, 140.490426471136 40.7919308332828, 140.489905831416 40.7920241312203, 140.489450543312 40.7921544887438, 140.488759712081 40.7924513822267, 140.488475431385 40.7926305102483, 140.488190476466 40.792944581399)) ^^http://www.opengis.net/ont/geosparql#wktLiteral