メタデータ名 G20503171822
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.0812500 31.4958334, 131.0875000 31.4958334, 131.0875000 31.5000000, 131.0812500 31.5000000, 131.0812500 31.4958334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral