メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.364624761118 43.1202570326205, 141.36465738351 43.1201318203098, 141.365238342626 43.1202109338027, 141.365208304029 43.1203369394729, 141.365157627534 43.1205359263844, 141.365138168754 43.1206139101342, 141.365034689476 43.1210395772832, 141.363603689726 43.1208580930901, 141.363228595351 43.1208105279919, 141.363303278531 43.1204717047622, 141.363400602825 43.1201007057294, 141.364624761118 43.1202570326205)) ^^http://www.opengis.net/ont/geosparql#wktLiteral