メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.872082450877 43.342708241131, 141.870552463652 43.3429654267483, 141.870496442745 43.3428008864336, 141.870347278708 43.3426425781301, 141.870048078342 43.3424662597565, 141.869610752623 43.3422938425743, 141.868529374661 43.3418716591694, 141.86838599459 43.3417484609677, 141.868236750412 43.3416076615441, 141.868135925239 43.3414013376706, 141.868096959484 43.3412222246424, 141.870144303419 43.3408955393173, 141.871408576418 43.3407060418252, 141.871481364504 43.3406961555022, 141.87178313684 43.341724707551, 141.872082450877 43.342708241131)) ^^http://www.opengis.net/ont/geosparql#wktLiteral