メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.337477396856 43.0931716450699, 141.337441746639 43.0932781889736, 141.33735615193 43.093646169322, 141.337330447552 43.0937421035331, 141.337273521263 43.0939695841894, 141.337238283532 43.0940547522911, 141.337212792073 43.0941364107766, 141.335822852587 43.0939473717526, 141.335830496827 43.0939108619601, 141.336000931376 43.0931687795259, 141.336111776508 43.0927296191347, 141.336131218835 43.0926417936874, 141.336638686627 43.0927054885504, 141.336750101512 43.0927312749103, 141.337114 43.0927697678537, 141.337564823726 43.092848197195, 141.337477396856 43.0931716450699)) ^^http://www.opengis.net/ont/geosparql#wktLiteral