メタデータ名 G20553857951
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.9437500 43.5750000, 141.9500000 43.5750000, 141.9500000 43.5791667, 141.9437500 43.5791667, 141.9437500 43.5750000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral