メタデータ名 G20493020221
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.2562500 40.4708334, 141.2625000 40.4708334, 141.2625000 40.4750000, 141.2562500 40.4750000, 141.2562500 40.4708334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral