メタデータ名 G20574172812
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.6750000 44.1375000, 141.6812500 44.1375000, 141.6812500 44.1416667, 141.6750000 44.1416667, 141.6750000 44.1375000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral