メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.392408380867 43.9002347208696, 142.391401948815 43.9009567412116, 142.391341475115 43.9008350083368, 142.391251145364 43.9006532077153, 142.390876249423 43.9003444956993, 142.390362880234 43.900045059832, 142.390004387206 43.8997554667579, 142.389796970882 43.8996490849029, 142.389481071981 43.8994870568391, 142.388940729036 43.899412022479, 142.388324719881 43.8992914944594, 142.387949245733 43.8991952731644, 142.38767001902 43.898870021228, 142.387499856805 43.8984160145668, 142.387452985356 43.8982740457638, 142.387339716203 43.8979309850045, 142.38734794699 43.8973435964885, 142.387434806796 43.896933060529, 142.387524529061 43.8966538493265, 142.387616108021 43.8967209984126, 142.392408380867 43.9002347208696)) ^^http://www.opengis.net/ont/geosparql#wktLiteral