メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.380110768542 43.7880865647478, 142.380636884902 43.7886256971318, 142.381893025196 43.789112752733, 142.381813325361 43.789324021432, 142.381668510361 43.7894627570461, 142.381475152273 43.7896464648065, 142.380853155139 43.7901540177649, 142.380497064834 43.7904935844916, 142.378943113526 43.7917013355461, 142.378310374259 43.7904710075758, 142.377674912521 43.789801183872, 142.376980939575 43.7890363976359, 142.376883318649 43.7889476168103, 142.376195808289 43.7884713168252, 142.37941035262 43.7873663845649, 142.380110768542 43.7880865647478)) ^^http://www.opengis.net/ont/geosparql#wktLiteral