メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.317906958771 43.0922035412532, 141.318181715731 43.0924429978459, 141.318136059924 43.0924732193933, 141.318407596629 43.0926973879867, 141.31894543497 43.0931179722168, 141.318315985591 43.0935813760456, 141.317876405155 43.0938827393707, 141.317210782376 43.0943826226084, 141.316633821383 43.0938652921691, 141.31654970013 43.093786821574, 141.316378256303 43.0936195881081, 141.316120654465 43.0933879325452, 141.315835753254 43.0931279219721, 141.316753547727 43.0925154673141, 141.317616913366 43.0919345613087, 141.317906958771 43.0922035412532)) ^^http://www.opengis.net/ont/geosparql#wktLiteral