メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.996732224285 43.5525673864358, 144.997175034585 43.5528478566666, 144.997057491265 43.5529504656936, 144.996994892748 43.5529091130543, 144.996394625439 43.5533886705818, 144.996286944866 43.5534786304392, 144.995903162825 43.5532247598171, 144.996003870458 43.5531388707589, 144.995446463805 43.552787597573, 144.996236064416 43.5521384187381, 144.996338934283 43.55205332161, 144.996908575081 43.5524227896785, 144.996804525144 43.5525074593567, 144.996732224285 43.5525673864358)) ^^http://www.opengis.net/ont/geosparql#wktLiteral