メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.154897337858 34.6656141739711, 135.154084725499 34.6664670511396, 135.153211278251 34.6658554205393, 135.153238308883 34.665830448549, 135.153659576353 34.665399405163, 135.153812175769 34.6652459690029, 135.154313282439 34.6655806465074, 135.154340124945 34.665554124089, 135.154525077453 34.6653710317532, 135.154532220471 34.6653777446898, 135.154897337858 34.6656141739711)) ^^http://www.opengis.net/ont/geosparql#wktLiteral