メタデータ名 G20473022791
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.7875000 43.1541667, 141.7937500 43.1541667, 141.7937500 43.1583333, 141.7875000 43.1583333, 141.7875000 43.1541667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral