メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.034897126269 42.9123436287356, 143.033669454821 42.912252853392, 143.033843268536 42.9109175351294, 143.034699646559 42.910968930545, 143.034708791638 42.91087525621, 143.035094671416 42.9109051098564, 143.034897737547 42.9123389126367, 143.034897126269 42.9123436287356)) ^^http://www.opengis.net/ont/geosparql#wktLiteral