メタデータ名 G20684105663
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.7312500 39.4750000, 141.7375000 39.4750000, 141.7375000 39.4791667, 141.7312500 39.4791667, 141.7312500 39.4750000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral