メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.17502754856 34.6782461382865, 135.174700641503 34.6785616628373, 135.173978894829 34.6792202227595, 135.173579097324 34.6789719779535, 135.173453692968 34.6788942958347, 135.173083911881 34.6786652294271, 135.173448515261 34.6782998676723, 135.173587999803 34.6781574840068, 135.173737442325 34.6780048890438, 135.174074991615 34.6776622449497, 135.17484090992 34.6781347423766, 135.17502754856 34.6782461382865)) ^^http://www.opengis.net/ont/geosparql#wktLiteral