メタデータ名 G20493004493
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.8687500 36.2333333, 139.8750000 36.2333333, 139.8750000 36.2375000, 139.8687500 36.2375000, 139.8687500 36.2333333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral