メタデータ名 G20473015871
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.2125000 38.8125000, 141.2187500 38.8125000, 141.2187500 38.8166667, 141.2125000 38.8166667, 141.2125000 38.8125000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral