メタデータ名 G20503031181
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.8562500 39.3708334, 141.8625000 39.3708334, 141.8625000 39.3750000, 141.8562500 39.3750000, 141.8562500 39.3708334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral