メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.94231730063 35.1381055544827, 136.942268430293 35.1386554069078, 136.942222003015 35.1392522375456, 136.942204617875 35.1394646049484, 136.941504877587 35.1394292063643, 136.941058073133 35.1394153583479, 136.941066343701 35.1392319276704, 136.94090739835 35.1392291331359, 136.940945670249 35.1386165827023, 136.940984497973 35.1380666405942, 136.94231730063 35.1381055544827)) ^^http://www.opengis.net/ont/geosparql#wktLiteral