メタデータ名 C15461-19820323
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.5875000 39.0208334, 141.5937500 39.0208334, 141.5937500 39.0250000, 141.5875000 39.0250000, 141.5875000 39.0208334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral