メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.806844663653 35.3207637508577, 136.807087605225 35.3213911854275, 136.806185350399 35.3216202672909, 136.806213637005 35.3216941570291, 136.805009143361 35.3220100070721, 136.804842592042 35.3215989307159, 136.804727445849 35.3212947727743, 136.804603923057 35.3209662921952, 136.804354676976 35.3203318608916, 136.804955865535 35.3201678811753, 136.805562323557 35.3200117315158, 136.805569508647 35.3200336552717, 136.806488833442 35.3197975173716, 136.806844663653 35.3207637508577)) ^^http://www.opengis.net/ont/geosparql#wktLiteral