メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.3965528664 43.0914646911048, 141.397177569925 43.092275995064, 141.396627936746 43.092507000481, 141.396103373321 43.0927020414913, 141.395305624695 43.0930268300444, 141.394898779529 43.093182516796, 141.394556676397 43.0928232615538, 141.394195294021 43.0924430440312, 141.393863894029 43.0921014477266, 141.393558470594 43.0917760094988, 141.393209549708 43.0913908178052, 141.395161913938 43.0905873160082, 141.395705368432 43.0903567674128, 141.3965528664 43.0914646911048)) ^^http://www.opengis.net/ont/geosparql#wktLiteral