メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.355712301702 43.0954947055896, 141.356149946942 43.0955515007977, 141.35676075714 43.0956319402986, 141.356484439646 43.0967810426447, 141.355886832647 43.0967026755749, 141.355428032818 43.0966417055351, 141.354893906771 43.0965735338162, 141.354942957226 43.0963884640599, 141.355183407757 43.0954303018302, 141.355712301702 43.0954947055896)) ^^http://www.opengis.net/ont/geosparql#wktLiteral