メタデータ名 C18201-19731101
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((130.3437500 31.6583333, 130.3500000 31.6583333, 130.3500000 31.6625000, 130.3437500 31.6625000, 130.3437500 31.6583333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral