メタデータ名 C4573
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.9000000 36.6208334, 139.9062500 36.6208334, 139.9062500 36.6250000, 139.9000000 36.6250000, 139.9000000 36.6208334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral