メタデータ名
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.1312500 43.6541667, 145.1375000 43.6541667, 145.1375000 43.6583333, 145.1312500 43.6583333, 145.1312500 43.6541667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral