メタデータ名 G20503047634
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.1750000 39.0458334, 141.1812500 39.0458334, 141.1812500 39.0500000, 141.1750000 39.0500000, 141.1750000 39.0458334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral