メタデータ名 G20513101754
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.4812500 42.6000000, 141.4875000 42.6000000, 141.4875000 42.6041667, 141.4812500 42.6041667, 141.4812500 42.6000000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral