メタデータ名 G20493020612
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.7250000 43.2166667, 141.7312500 43.2166667, 141.7312500 43.2208334, 141.7250000 43.2208334, 141.7250000 43.2166667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral