メタデータ名 G20473017081
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.7750000 35.5333333, 138.7812500 35.5333333, 138.7812500 35.5375000, 138.7750000 35.5375000, 138.7750000 35.5333333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral