メタデータ名 G20493350361
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.6750000 44.3291667, 141.6812500 44.3291667, 141.6812500 44.3333333, 141.6750000 44.3333333, 141.6750000 44.3291667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral