メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.318728411756 43.2382909471514, 144.317161833875 43.2393871392873, 144.315884226856 43.2403202141697, 144.315411260867 43.2409039344591, 144.314135178539 43.2384949614302, 144.314771044199 43.2381321465336, 144.315050956305 43.2379386952704, 144.315912480414 43.2375365668802, 144.316404127438 43.2373070794814, 144.31714481328 43.2371889829834, 144.317920321629 43.2372587191712, 144.318252321799 43.2373656564046, 144.31841258698 43.2374173295149, 144.31891802024 43.2375442646566, 144.319385895861 43.2378289101814, 144.318728411756 43.2382909471514)) ^^http://www.opengis.net/ont/geosparql#wktLiteral