メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.128249043399 34.647200182409, 135.128016702369 34.647429324747, 135.12697325101 34.6469651007025, 135.127362442236 34.646597460665, 135.128249043399 34.647200182409)) ^^http://www.opengis.net/ont/geosparql#wktLiteral