メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.215087173824 34.6612873143857, 135.214920874938 34.6615522013384, 135.214320790672 34.6612928635787, 135.213638842582 34.66102960741, 135.212858357692 34.6607332538322, 135.212460603209 34.6605678038256, 135.214532566577 34.657196645463, 135.21489812337 34.6573492220066, 135.216947270576 34.6581997861037, 135.215087173824 34.6612873143857)) ^^http://www.opengis.net/ont/geosparql#wktLiteral