メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.891670406912 43.3329494036783, 141.891799965157 43.332975124517, 141.89205887013 43.3330215014158, 141.892010974938 43.3349578705264, 141.89188096593 43.3349628823773, 141.890246359054 43.3349821259039, 141.889464615938 43.3349927642746, 141.888156782757 43.3350042791506, 141.888195023834 43.333729476821, 141.888188221172 43.3331211105881, 141.88819128139 43.3317715078421, 141.888170250015 43.33098439066, 141.891536609549 43.3313748787127, 141.893553763542 43.3316217197987, 141.893247247983 43.3324960236501, 141.891850683723 43.3325808751965, 141.891670406912 43.3329494036783)) ^^http://www.opengis.net/ont/geosparql#wktLiteral