メタデータ名 G20503043532
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.7312500 45.0291667, 141.7375000 45.0291667, 141.7375000 45.0333333, 141.7312500 45.0333333, 141.7312500 45.0291667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral