メタデータ名 C28321-19700401
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.0750000 39.9583333, 141.0812500 39.9583333, 141.0812500 39.9625000, 141.0750000 39.9625000, 141.0750000 39.9583333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral