メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.201938638906 34.6899290772944, 135.202371310284 34.6907647618379, 135.201187042578 34.6912859288333, 135.200757929758 34.6907181018776, 135.200022490889 34.6901035775256, 135.200028702341 34.6900940948248, 135.200465624026 34.6896064383671, 135.201478532495 34.6891462239575, 135.201638916143 34.6893501654452, 135.201938638906 34.6899290772944)) ^^http://www.opengis.net/ont/geosparql#wktLiteral