メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.743255669375 35.4151591925319, 136.743154684605 35.4153478476275, 136.741900539452 35.4149230351874, 136.742371450697 35.4139872832315, 136.74364579364 35.4144129362632, 136.743530844107 35.4146325631959, 136.74345410634 35.4147987697344, 136.74336015886 35.4149662184424, 136.743255669375 35.4151591925319)) ^^http://www.opengis.net/ont/geosparql#wktLiteral