メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.051079317425 42.902132759343, 143.051660560217 42.9021820783084, 143.051503962597 42.9034002184127, 143.051492595886 42.903460644363, 143.050949312294 42.9034180924983, 143.050847609762 42.9034101526001, 143.050342495636 42.9033673311034, 143.050346464368 42.9033044262639, 143.050483432562 42.9020978179197, 143.051079317425 42.902132759343)) ^^http://www.opengis.net/ont/geosparql#wktLiteral