メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.843854665664 35.4435133254299, 136.843630408894 35.4436377223737, 136.843544712196 35.4437479472598, 136.843425909739 35.4438464648335, 136.843263427286 35.4438445512412, 136.843363459915 35.4434742329578, 136.843655836709 35.442641275539, 136.843748787558 35.4423196346823, 136.843684902882 35.4420479242338, 136.844361986838 35.4392638737014, 136.846677385923 35.4396564459804, 136.845989800564 35.4424775269052, 136.845230708041 35.442837261432, 136.844304327703 35.4433202014047, 136.843854665664 35.4435133254299)) ^^http://www.opengis.net/ont/geosparql#wktLiteral