メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.199177749088 34.8152075112072, 137.199220185785 34.8153449136164, 137.19929158743 34.8155174957869, 137.199410022926 34.8158037620242, 137.199388055505 34.8158342996991, 137.198639210891 34.815702985501, 137.198460244988 34.8153556268994, 137.198469434264 34.8153404659465, 137.198628107934 34.8150742622081, 137.198535196828 34.8150328210485, 137.198486012987 34.815025623371, 137.198515469295 34.8148471226282, 137.198787625736 34.8149083444541, 137.199029135436 34.8148199295122, 137.19910787495 34.8149812708636, 137.199177749088 34.8152075112072)) ^^http://www.opengis.net/ont/geosparql#wktLiteral