メタデータ名 G20503021021
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.5250000 43.0583333, 144.5312500 43.0583333, 144.5312500 43.0625000, 144.5250000 43.0625000, 144.5250000 43.0583333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral