メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.862007697698 35.2369384419849, 136.862006617096 35.2369462564048, 136.861940787371 35.2376747642372, 136.861173674845 35.2376635994955, 136.859834961102 35.2376417518133, 136.859912869502 35.2365749605702, 136.859996668073 35.2356609908745, 136.86132401961 35.2357459076549, 136.862113465211 35.2357938901286, 136.86205103675 35.2363722013925, 136.862007697698 35.2369384419849)) ^^http://www.opengis.net/ont/geosparql#wktLiteral