メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.993364456513 34.9946712670825, 136.99183205759 34.9946584061943, 136.991212106732 34.9946523589868, 136.991066501112 34.9935349197018, 136.990999762339 34.9930665636281, 136.992067431665 34.9934839860196, 136.992499342656 34.993650818245, 136.993230749138 34.9939178050566, 136.993531546868 34.9940402162466, 136.99333218536 34.9943759265194, 136.993344222326 34.9945190480504, 136.993364456513 34.9946712670825)) ^^http://www.opengis.net/ont/geosparql#wktLiteral