メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.111935866873 43.8285627775699, 144.111292567365 43.8287538125797, 144.109188507262 43.8293996109427, 144.108112972351 43.829729409374, 144.10810489137 43.8297319144352, 144.107079763001 43.8300462217939, 144.106833981055 43.8296320668915, 144.106808772379 43.8295897038444, 144.106444340052 43.8289452651832, 144.108548602327 43.828286625251, 144.109066430135 43.8281275526457, 144.109169955969 43.828095734523, 144.110645298162 43.8276424350655, 144.111419280854 43.8274187353528, 144.111555584395 43.8276600996193, 144.111828878395 43.8282460105627, 144.111935866873 43.8285627775699)) ^^http://www.opengis.net/ont/geosparql#wktLiteral