メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.592417005249 37.8532723143404, 140.591540679831 37.8534722269701, 140.591409777417 37.8531824867571, 140.591222222853 37.852761615955, 140.591854072537 37.8525123081519, 140.591938412501 37.8526075011284, 140.591995381217 37.8526828777949, 140.592122195843 37.8528508661915, 140.592274083884 37.8530919015652, 140.592404561433 37.8532536692142, 140.592417005249 37.8532723143404)) ^^http://www.opengis.net/ont/geosparql#wktLiteral