メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.770185877197 35.4169627269909, 136.770174900326 35.4172019070297, 136.770174723374 35.4172381019047, 136.768993054054 35.4172727729007, 136.768990478455 35.4172366393281, 136.768966356663 35.4170944540012, 136.76898473593 35.417004271322, 136.768997510429 35.4169253366047, 136.768940047608 35.4168371951168, 136.768940445946 35.4167559674997, 136.769230373496 35.4166801909245, 136.769500999454 35.4166021325297, 136.770178909918 35.4163817427869, 136.770175285775 35.4166129182453, 136.770185877197 35.4169627269909)) ^^http://www.opengis.net/ont/geosparql#wktLiteral