jena-arq/testing/ARQ/OpenWorld/open-eq-11.rq

PREFIX     :    <http://example/>
PREFIX  xsd:    <http://www.w3.org/2001/XMLSchema#>

SELECT *
{
    ?x :p ?v1 .
    ?y :q ?v2 .
    FILTER ( ?v1 != ?v2 || ?v1 = ?v2 )
}