メタデータ名 G20513221873
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.6875000 39.6791667, 140.6937500 39.6791667, 140.6937500 39.6833333, 140.6875000 39.6833333, 140.6875000 39.6791667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral