メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.18318031163 37.7291009221728, 139.184426329398 37.7292240565594, 139.185070856595 37.7292932363661, 139.185762804209 37.7293674850384, 139.185513959875 37.7308988703512, 139.185253912431 37.7324469313816, 139.184216507466 37.7323359697254, 139.18395688432 37.7323098858486, 139.183354642645 37.7322539666184, 139.183384783986 37.732056970907, 139.182739709075 37.7319887690796, 139.182715952177 37.7321668616499, 139.181401562317 37.7320543828652, 139.18162585353 37.7305277962125, 139.181863733296 37.7289615715107, 139.18318031163 37.7291009221728)) ^^http://www.opengis.net/ont/geosparql#wktLiteral