メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.744034161481 35.4136723058941, 136.743936635796 35.4138581570895, 136.742847909796 35.413476854682, 136.742877369997 35.4134196000606, 136.742793851245 35.4133938503313, 136.742698677161 35.4133600670855, 136.742861804731 35.413048428663, 136.742960055596 35.412863988874, 136.74400394287 35.4132316124753, 136.743905653536 35.4134240104806, 136.744121275513 35.4135033183036, 136.744034161481 35.4136723058941)) ^^http://www.opengis.net/ont/geosparql#wktLiteral