メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.373111753038 43.8123378334221, 142.372606338009 43.8127049030308, 142.372123631786 43.8130323375795, 142.371768107357 43.8132875039029, 142.371628496611 43.8134001650183, 142.371115037072 43.8137681327644, 142.369566805565 43.812617273006, 142.370067684888 43.8122403050054, 142.370559485561 43.8118963605064, 142.371046577354 43.8115390753686, 142.371529356403 43.8111952770721, 142.372012007811 43.8108414218088, 142.373590348017 43.8119880011967, 142.373111753038 43.8123378334221)) ^^http://www.opengis.net/ont/geosparql#wktLiteral