メタデータ名 G20492817964
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.0125000 42.3541667, 141.0187500 42.3541667, 141.0187500 42.3583333, 141.0125000 42.3583333, 141.0125000 42.3541667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral