メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.389006699787 43.7490327345838, 142.39050979389 43.7489530325747, 142.390553299864 43.7494341891834, 142.390596447328 43.7499263338763, 142.388142537924 43.750066953539, 142.387538317294 43.750109007016, 142.387280121897 43.7501247857417, 142.387172134926 43.7501487348379, 142.38699288146 43.7501972588088, 142.386113923143 43.7504578914148, 142.386092873572 43.7501227990002, 142.386086117106 43.7498983939332, 142.386038702431 43.7494761519409, 142.387951814785 43.7489430758958, 142.388800718243 43.74870648029, 142.389006699787 43.7490327345838)) ^^http://www.opengis.net/ont/geosparql#wktLiteral