メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.993266691751 43.5590861616357, 144.992851199431 43.5588585328854, 144.993749905852 43.5581482488503, 144.994076081281 43.5583680003051, 144.993266691751 43.5590861616357)) ^^http://www.opengis.net/ont/geosparql#wktLiteral