メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.365333723904 43.0654717764538, 141.365242381947 43.0658537341356, 141.365244630832 43.0659441957173, 141.365165665058 43.0662791980859, 141.365071126824 43.0662629951382, 141.364413218415 43.0661677443003, 141.364357986616 43.0661597208967, 141.363918129897 43.0660966770458, 141.363785514807 43.066080178256, 141.363648973652 43.066063225806, 141.363929720857 43.0648854080801, 141.364397252156 43.0649378364298, 141.364477164625 43.0649504096365, 141.365365207699 43.0650900591315, 141.365465729108 43.0651035660169, 141.365429894075 43.0653076669343, 141.365404614359 43.0653513572886, 141.365336072566 43.0654618777833, 141.365333723904 43.0654717764538)) ^^http://www.opengis.net/ont/geosparql#wktLiteral