メタデータ名 C31340-20041101
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.3125000 42.3291667, 143.3187500 42.3291667, 143.3187500 42.3333333, 143.3125000 42.3333333, 143.3125000 42.3291667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral