メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.27240196086 43.1076302487424, 141.272047858292 43.1078666230019, 141.270563447842 43.1065804333209, 141.270620717704 43.1065342247523, 141.273089050856 43.1048587740223, 141.273581286569 43.1052976719756, 141.273993744189 43.1056654199581, 141.274503217738 43.1061317489655, 141.274551733601 43.1061773831422, 141.274116496978 43.1064528790997, 141.273729064747 43.1067157693735, 141.273341609248 43.1069859722137, 141.272746861114 43.1073868326054, 141.27240196086 43.1076302487424)) ^^http://www.opengis.net/ont/geosparql#wktLiteral