メタデータ名 G20493361982
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.0750000 36.3166667, 139.0812500 36.3166667, 139.0812500 36.3208334, 139.0750000 36.3208334, 139.0750000 36.3166667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral