メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.0537859542 43.567151040017, 142.053172005968 43.5673343388394, 142.05275936222 43.5670175907673, 142.052465568365 43.5667179958295, 142.052389296635 43.5665127285237, 142.052793551271 43.5656388062318, 142.053011895739 43.5658398525052, 142.05347396133 43.566360835193, 142.054000731807 43.5670789754777, 142.0537859542 43.567151040017)) ^^http://www.opengis.net/ont/geosparql#wktLiteral