メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.321154636118 43.113108030512, 141.321463271174 43.1134182864269, 141.321809828294 43.1137666879712, 141.321452462959 43.1139613329323, 141.321092290731 43.1141573652539, 141.320736790961 43.11434281775, 141.320622903909 43.1144021639472, 141.32035425872 43.1145382472398, 141.319667079017 43.1138690622329, 141.318990070521 43.1131695038864, 141.319022875095 43.1131521880846, 141.319358627825 43.1129774818173, 141.319728437362 43.112784976506, 141.319747308256 43.1127750026909, 141.320114347607 43.112581489913, 141.320459806932 43.1123992639376, 141.320816899867 43.1127672994356, 141.321154636118 43.113108030512)) ^^http://www.opengis.net/ont/geosparql#wktLiteral