メタデータ名 C23220-19780701
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.0687500 39.7583333, 141.0750000 39.7583333, 141.0750000 39.7625000, 141.0687500 39.7625000, 141.0687500 39.7583333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral