jena-arq/testing/ARQ/Negation/neg-03.arq - jena - Git at Google

 PREFIX :    <http://example/>
 PREFIX ns:  <http://example/ns#>

 ASK
 {
     FILTER (NOT EXISTS{:x4 :q []})
 }
	PREFIX : <http://example/>
	PREFIX ns: <http://example/ns#>

	ASK
	{
	FILTER (NOT EXISTS{:x4 :q []})
	}