メタデータ名 G20492906452
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.6000000 42.7708334, 141.6062500 42.7708334, 141.6062500 42.7750000, 141.6000000 42.7750000, 141.6000000 42.7708334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral