メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.878315348871 35.1299320740715, 136.878314716628 35.1299595378865, 136.87722758263 35.1299335929258, 136.877250770199 35.1284548472668, 136.878344842205 35.1284833466019, 136.878337600101 35.1288720789568, 136.87833041704 35.1290191807533, 136.878328546198 35.1290574878079, 136.878326497654 35.1294442612371, 136.878315348871 35.1299320740715)) ^^http://www.opengis.net/ont/geosparql#wktLiteral