メタデータ名 C28219-19810301
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.9250000 38.4833333, 140.9312500 38.4833333, 140.9312500 38.4875000, 140.9250000 38.4875000, 140.9250000 38.4833333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral