メタデータ名 G20493154444
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.1062500 39.8666667, 141.1125000 39.8666667, 141.1125000 39.8708334, 141.1062500 39.8708334, 141.1062500 39.8666667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral