メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.347775229265 43.1088245842181, 141.348350145322 43.1089051887827, 141.348994055327 43.1090002549034, 141.348776178153 43.1099026167688, 141.348675377061 43.1103354702047, 141.348037789345 43.1102405250951, 141.347805229339 43.1102133137467, 141.347450291173 43.1101597536852, 141.347302697732 43.1101378490038, 141.346771758738 43.110062229022, 141.346879616172 43.1095809725033, 141.346909385818 43.1094820430142, 141.346994888399 43.1091241088156, 141.347088984891 43.1087234815267, 141.347775229265 43.1088245842181)) ^^http://www.opengis.net/ont/geosparql#wktLiteral