メタデータ名 G20574015393
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.3687500 39.7416667, 141.3750000 39.7416667, 141.3750000 39.7458334, 141.3687500 39.7458334, 141.3687500 39.7416667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral