メタデータ名 G20493370391
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.1000000 36.0625000, 138.1062500 36.0625000, 138.1062500 36.0666667, 138.1000000 36.0666667, 138.1000000 36.0625000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral