メタデータ名
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.4812500 40.7083333, 140.4875000 40.7083333, 140.4875000 40.7125000, 140.4812500 40.7125000, 140.4812500 40.7083333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral