メタデータ名 C21580-19700401
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.5875000 40.7375000, 140.5937500 40.7375000, 140.5937500 40.7416667, 140.5875000 40.7416667, 140.5875000 40.7375000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral