メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.574196936122 42.632003440495, 141.575345777368 42.6323948140304, 141.575866806961 42.6325586723177, 141.575884406972 42.6325648250928, 141.575286075048 42.6334582104399, 141.575090938631 42.6337405097244, 141.574854671141 42.6340999339182, 141.574743631857 42.6342687865285, 141.574430023402 42.6347457744899, 141.57349031503 42.6346250102641, 141.572673117759 42.6344809102461, 141.571054485188 42.6342247180271, 141.571658417006 42.6332569756553, 141.57177547652 42.6330694539774, 141.571964789473 42.6327504116425, 141.572178534617 42.6324135079345, 141.572381515046 42.6320766803985, 141.572760653839 42.6315168083307, 141.573172779834 42.6316607620022, 141.574196936122 42.632003440495)) ^^http://www.opengis.net/ont/geosparql#wktLiteral