メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.798614015894 35.2407144604717, 136.797192751265 35.2408419709628, 136.795065677571 35.2410944654759, 136.795007212149 35.2396460140485, 136.795170921875 35.2396334189821, 136.795590934969 35.2396133713643, 136.796052906225 35.2396159867564, 136.796081776721 35.2396374139697, 136.796335140458 35.2396441765057, 136.796351570713 35.2389087874397, 136.797172723632 35.238893482893, 136.798456249153 35.238797597918, 136.798479347471 35.2391338734243, 136.798497271111 35.2393251995257, 136.798557975633 35.2399883574204, 136.798614015894 35.2407144604717)) ^^http://www.opengis.net/ont/geosparql#wktLiteral