メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.26248515159 43.1189240114515, 141.262786582066 43.119206725537, 141.263073189848 43.119455697651, 141.263505709337 43.1198254831322, 141.261835114329 43.1209381935502, 141.261348986799 43.120529047787, 141.260889231524 43.1201458676357, 141.260397524215 43.119690393202, 141.260891754475 43.1193995560608, 141.26167038879 43.1189153041423, 141.262109423757 43.1186346784751, 141.26248515159 43.1189240114515)) ^^http://www.opengis.net/ont/geosparql#wktLiteral