メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.953262871519 43.5497412549625, 144.953102928932 43.549628169895, 144.95282999964 43.5494574948997, 144.952559787393 43.5492739936911, 144.953209967676 43.5487794251541, 144.953517747718 43.5489857699452, 144.953719867542 43.5491296397822, 144.953876153431 43.549230152764, 144.953262871519 43.5497412549625)) ^^http://www.opengis.net/ont/geosparql#wktLiteral