メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.292799415154 43.0888063734742, 141.293478577435 43.0888573405289, 141.293532927086 43.0893359608648, 141.293599425983 43.0898726336234, 141.293225696384 43.0900987839459, 141.293048128975 43.0902062389248, 141.292573965875 43.0901648605325, 141.292302920136 43.0901500043476, 141.292001039569 43.0901248332914, 141.291350935514 43.0900803599502, 141.290922197461 43.0900490601813, 141.290944063303 43.0898592144291, 141.291047049556 43.0890887096024, 141.291101281033 43.0886939850854, 141.291180126424 43.088702171122, 141.292156114597 43.0887694864076, 141.29257989737 43.0887919495874, 141.292799415154 43.0888063734742)) ^^http://www.opengis.net/ont/geosparql#wktLiteral