メタデータ名 G20492957894
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.7750000 35.7125000, 138.7812500 35.7125000, 138.7812500 35.7166667, 138.7750000 35.7166667, 138.7750000 35.7125000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral