メタデータ名 G20503177984
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.4875000 35.5833333, 138.4937500 35.5833333, 138.4937500 35.5875000, 138.4875000 35.5875000, 138.4875000 35.5833333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral