メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.561511633417 40.2689467218197, 140.560434012542 40.2687234242221, 140.558521619105 40.2683097911569, 140.558594607434 40.2680916088277, 140.558699029342 40.2678567000576, 140.559194093677 40.2668903857286, 140.559604134214 40.267020894711, 140.560036117349 40.2672236128364, 140.560141304897 40.2672769509859, 140.561076558644 40.2678885202514, 140.561062513241 40.2679267111472, 140.56169360771 40.2682891590799, 140.561511633417 40.2689467218197)) ^^http://www.opengis.net/ont/geosparql#wktLiteral