メタデータ名 G20574151021
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.9875000 35.3041667, 138.9937500 35.3041667, 138.9937500 35.3083333, 138.9875000 35.3083333, 138.9875000 35.3041667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral