メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.128051999908 42.9742158313279, 144.127398613286 42.974939687218, 144.126756407414 42.975653721915, 144.125769848716 42.9753054548218, 144.124784838295 42.9748311947755, 144.123793430928 42.9743540071218, 144.124311314468 42.9737840900622, 144.124504256073 42.9735776793645, 144.124563363486 42.9735119383116, 144.125170974803 42.9728569259973, 144.125806748063 42.9721332309023, 144.126726406316 42.972783883542, 144.127570449006 42.9736997836312, 144.128051999908 42.9742158313279)) ^^http://www.opengis.net/ont/geosparql#wktLiteral