メタデータ名 G20493064992
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.0875000 36.4833333, 138.0937500 36.4833333, 138.0937500 36.4875000, 138.0875000 36.4875000, 138.0875000 36.4833333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral