メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.872608254309 35.0970449900019, 136.874088994295 35.0971328955478, 136.874780200325 35.0971954933682, 136.874802425087 35.097495102209, 136.874057637999 35.0974507568494, 136.872579890752 35.097362854905, 136.871557977796 35.0973019630395, 136.87138603738 35.0972917568202, 136.871425792245 35.0969652622926, 136.872608254309 35.0970449900019)) ^^http://www.opengis.net/ont/geosparql#wktLiteral