メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.891109478977 43.0120284246038, 142.891081458625 43.0120109990788, 142.891094925581 43.0119282864556, 142.891109604846 43.0118378305751, 142.891066485764 43.0117142915966, 142.890615900739 43.0109348150944, 142.890754786799 43.0108216530986, 142.891845457162 43.0098530880798, 142.891935281028 43.0097638286254, 142.892052491041 43.009663022518, 142.892749471045 43.0116596496653, 142.892769760344 43.0117075707273, 142.891221766627 43.0120066984092, 142.891109478977 43.0120284246038)) ^^http://www.opengis.net/ont/geosparql#wktLiteral