メタデータ名 C2383
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.9687500 38.2250000, 140.9750000 38.2250000, 140.9750000 38.2291667, 140.9687500 38.2291667, 140.9687500 38.2250000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral