メタデータ名 G20523457454
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.8312500 39.8958334, 139.8375000 39.8958334, 139.8375000 39.9000000, 139.8312500 39.9000000, 139.8312500 39.8958334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral