メタデータ名 G20503370031
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.1375000 40.8000000, 141.1437500 40.8000000, 141.1437500 40.8041667, 141.1375000 40.8041667, 141.1375000 40.8000000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral