メタデータ名 C16383-19830301
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.5687500 40.7041667, 140.5750000 40.7041667, 140.5750000 40.7083333, 140.5687500 40.7083333, 140.5687500 40.7041667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral