メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.331281265306 43.1420850887669, 141.331955887236 43.1419996896816, 141.332078000365 43.1425105533509, 141.33221647467 43.1430899780506, 141.332245998623 43.1432222925939, 141.332575760019 43.1446974804815, 141.329817815935 43.1450561931181, 141.329475342565 43.1435813074731, 141.329390446365 43.1432158271297, 141.329303752458 43.1428422436666, 141.329189454148 43.1423497921801, 141.331281265306 43.1420850887669)) ^^http://www.opengis.net/ont/geosparql#wktLiteral