メタデータ名 G20503021792
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.1812500 40.6875000, 141.1875000 40.6875000, 141.1875000 40.6916667, 141.1812500 40.6916667, 141.1812500 40.6875000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral