メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.321810024599 43.1096659198845, 141.322158676162 43.1094681071689, 141.323471428103 43.110817301799, 141.323097623756 43.1109958541931, 141.32274581397 43.1111862575054, 141.32237179313 43.1113852706731, 141.321949804458 43.1116012639505, 141.321608905722 43.1112412338597, 141.321303801022 43.1109329032455, 141.321250603364 43.1108897129474, 141.320994490175 43.1106047786734, 141.320676205328 43.1102798846535, 141.321407128711 43.1098895222606, 141.321810024599 43.1096659198845)) ^^http://www.opengis.net/ont/geosparql#wktLiteral