メタデータ名 G20503007051
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.2437500 39.0416667, 141.2500000 39.0416667, 141.2500000 39.0458334, 141.2437500 39.0458334, 141.2437500 39.0416667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral