メタデータ名 G20513143712
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.5875000 43.0541667, 141.5937500 43.0541667, 141.5937500 43.0583333, 141.5875000 43.0583333, 141.5875000 43.0541667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral