メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.37755339144 42.9766217877982, 144.378325664468 42.9769419578489, 144.378358403727 42.9769526006449, 144.378106944517 42.977314824353, 144.377802773302 42.9776872421076, 144.377792785875 42.9777420020487, 144.377717391669 42.978160586894, 144.377452388735 42.9781416081451, 144.377308197173 42.9780875371937, 144.377020734675 42.9778838727415, 144.376482409063 42.9774878182856, 144.375568383614 42.9768061871699, 144.376215580758 42.976504545154, 144.376448241612 42.976163562657, 144.37755339144 42.9766217877982)) ^^http://www.opengis.net/ont/geosparql#wktLiteral