メタデータ名 C15462-19740901
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.9437500 34.9416667, 138.9500000 34.9416667, 138.9500000 34.9458334, 138.9437500 34.9458334, 138.9437500 34.9416667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral