メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.741546216232 43.1887079701597, 141.741128815484 43.189133645231, 141.740735700989 43.1895682874308, 141.74019281975 43.190142990578, 141.739925180539 43.1900049410949, 141.739769756341 43.1899247784985, 141.739497559036 43.1897862152847, 141.739090365183 43.1895789007423, 141.738591582349 43.1893249704336, 141.739140884395 43.1887591658277, 141.739547425119 43.1883404116536, 141.739894921925 43.1879824389829, 141.739958322952 43.187917175343, 141.741546216232 43.1887079701597)) ^^http://www.opengis.net/ont/geosparql#wktLiteral