メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.478574154232 34.1795598718068, 131.478602601495 34.1795787683949, 131.478822896782 34.179724400268, 131.479278530571 34.1800523739649, 131.478990171361 34.1802898152018, 131.478940731303 34.1803305305944, 131.478765013681 34.1804873201742, 131.478447125247 34.1802278784017, 131.478280857953 34.1801129781272, 131.47819765676 34.1800492743249, 131.478112375778 34.1799839779238, 131.477952041041 34.1798171279885, 131.478254515467 34.1796261161518, 131.478294648351 34.1796514175559, 131.478473791016 34.1794901400074, 131.478574154232 34.1795598718068)) ^^http://www.opengis.net/ont/geosparql#wktLiteral