メタデータ名 C15402-19990602
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.8437500 43.2583333, 141.8500000 43.2583333, 141.8500000 43.2625000, 141.8437500 43.2625000, 141.8437500 43.2583333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral