メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.203419304599 34.0048283332434, 131.203353681752 34.0048428927877, 131.203199211632 34.004703909521, 131.202616270489 34.0034064105812, 131.202739373715 34.0034242802977, 131.202895105219 34.0034436732373, 131.203250192428 34.0035061856286, 131.203433792376 34.0035441101285, 131.203988900522 34.0037108830038, 131.204395347312 34.0046118471185, 131.203477466593 34.0048154065983, 131.203419304599 34.0048283332434)) ^^http://www.opengis.net/ont/geosparql#wktLiteral