メタデータ名 G20503270023
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.3125000 36.2125000, 139.3187500 36.2125000, 139.3187500 36.2166667, 139.3125000 36.2166667, 139.3125000 36.2125000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral