メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.485275911418 40.6251693005179, 140.485547905497 40.6270035059339, 140.484980497384 40.6270425364022, 140.484481616507 40.6270847230284, 140.484390451075 40.6270924000602, 140.481594318031 40.6273219694493, 140.481349045748 40.6255049994274, 140.481186954627 40.6242863952972, 140.481178934027 40.6242487985014, 140.481990981604 40.6241870266522, 140.482889347313 40.6241255805055, 140.483966639942 40.6240363131047, 140.483983084327 40.6240349559743, 140.485117861555 40.6239507163364, 140.485275911418 40.6251693005179)) ^^http://www.opengis.net/ont/geosparql#wktLiteral