メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.369685065275 43.7256413410714, 142.369575775809 43.7258326021191, 142.369397170783 43.7261475760535, 142.369326037586 43.726290839182, 142.368984115906 43.7268649355455, 142.367952862657 43.7265390284119, 142.36828361404 43.725975090392, 142.368650659991 43.725350198241, 142.368656916619 43.725339468021, 142.368692684902 43.7252780768476, 142.36919350779 43.7244184580884, 142.370228878811 43.7247210042863, 142.369921831353 43.7252270146334, 142.369685065275 43.7256413410714)) ^^http://www.opengis.net/ont/geosparql#wktLiteral