メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.840787976357 38.9148942315402, 139.840870572188 38.9151541426905, 139.840901680458 38.9152427341028, 139.841033042117 38.9156170757346, 139.841165621608 38.9159947346138, 139.841341613356 38.9164962092993, 139.841467263637 38.9168540331505, 139.840770790542 38.9169716221835, 139.839855735392 38.9172077653994, 139.839653030825 38.9168396412551, 139.839499159155 38.9165036036154, 139.839500041305 38.916440269879, 139.839357422801 38.9161371958207, 139.839203354813 38.9158219884612, 139.839145975712 38.9157763156812, 139.838965503233 38.9154424440344, 139.838760699079 38.9150317914343, 139.838524183338 38.9145438722659, 139.838962478765 38.9144118478471, 139.839649248482 38.9142003001352, 139.840507658966 38.9140119577293, 139.840605008673 38.9143184457901, 139.840787976357 38.9148942315402)) ^^http://www.opengis.net/ont/geosparql#wktLiteral