メタデータ名 G20503131153
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.1437500 39.0208334, 141.1500000 39.0208334, 141.1500000 39.0250000, 141.1437500 39.0250000, 141.1437500 39.0208334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral