メタデータ名 G20503373444
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.9812500 42.5541667, 141.9875000 42.5541667, 141.9875000 42.5583333, 141.9812500 42.5583333, 141.9812500 42.5541667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral