メタデータ名 C25462-19901001
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.2812500 37.8708334, 138.2875000 37.8708334, 138.2875000 37.8750000, 138.2812500 37.8750000, 138.2812500 37.8708334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral