メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.432540134621 43.0115257126311, 144.432725748512 43.0117659980366, 144.432917983216 43.0120145267989, 144.433111846444 43.0122656958953, 144.433458888525 43.012728721845, 144.432799255982 43.0128606541862, 144.432262114659 43.0124957713882, 144.431760065704 43.0121798679418, 144.428768922592 43.010045027784, 144.431443230476 43.0100808613739, 144.431887329471 43.0106657468857, 144.432160954815 43.0110262325888, 144.432540134621 43.0115257126311)) ^^http://www.opengis.net/ont/geosparql#wktLiteral