メタデータ名 G20513101223
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.9125000 39.5666667, 141.9187500 39.5666667, 141.9187500 39.5708334, 141.9125000 39.5708334, 141.9125000 39.5666667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral