メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.751147721956 43.2066221773254, 141.751187072177 43.2066424628264, 141.751412031925 43.2067563196133, 141.75066376041 43.2075090835584, 141.750401375495 43.207763018871, 141.750008594817 43.208143185007, 141.749005489383 43.2076405251526, 141.749308646199 43.2073100440423, 141.749392241267 43.2072222181577, 141.74962256256 43.2069800312518, 141.749762016222 43.2068333737115, 141.750009402717 43.2065733267559, 141.750036796724 43.20654468236, 141.750354327664 43.2062127143743, 141.751091569703 43.2065931685808, 141.751147721956 43.2066221773254)) ^^http://www.opengis.net/ont/geosparql#wktLiteral