メタデータ名 G20503176374
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.0375000 39.1458334, 141.0437500 39.1458334, 141.0437500 39.1500000, 141.0375000 39.1500000, 141.0375000 39.1458334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral