メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.491904398786 43.0219675381777, 141.492763981835 43.0220750013259, 141.493265762666 43.0221461925221, 141.493592581712 43.0221299979533, 141.49364442091 43.0221274573653, 141.493928146976 43.0220805245239, 141.494079064914 43.0220221624157, 141.494166332634 43.0219718902772, 141.494451802358 43.0217788187902, 141.494876046895 43.0220486679249, 141.494488525757 43.0223838374821, 141.494129605105 43.0224773976022, 141.493663295754 43.0225577970484, 141.49362735486 43.0229596417767, 141.491685075375 43.0228253876612, 141.490859322035 43.0227061138699, 141.490630691095 43.0222485694447, 141.490392008609 43.0217708437606, 141.491904398786 43.0219675381777)) ^^http://www.opengis.net/ont/geosparql#wktLiteral