メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.351306459097 43.1145546226446, 141.351683804318 43.1145939960671, 141.351694626367 43.1145956980851, 141.352172317652 43.1146524489532, 141.352103714802 43.1149644343409, 141.352069689395 43.1151048170025, 141.352035568005 43.1152451989001, 141.351963185455 43.1155464645192, 141.351877814421 43.11591506958, 141.351469871545 43.1158604092109, 141.350286763368 43.1157018703471, 141.350047191975 43.1156736259421, 141.350111489611 43.1153810883823, 141.350341708563 43.1144386468177, 141.350882259044 43.1145028569477, 141.350898000638 43.1145029799009, 141.351306459097 43.1145546226446)) ^^http://www.opengis.net/ont/geosparql#wktLiteral