メタデータ名 G20473047791
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.0187500 31.5791667, 131.0250000 31.5791667, 131.0250000 31.5833333, 131.0187500 31.5833333, 131.0187500 31.5791667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral