メタデータ名 C31321-19851215
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.0062500 43.1750000, 145.0125000 43.1750000, 145.0125000 43.1791667, 145.0062500 43.1791667, 145.0062500 43.1750000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral