#  Query Type: 5, Delta materialization

SELECT * 
WHERE {
  { 
    GRAPH {{{graphVmax}}} { ?s ?p ?o } .
    FILTER (NOT EXISTS { GRAPH {{{graphVhistorical}}} { ?s ?p ?o } }) 
  }
  UNION
  { 
    GRAPH {{{graphVhistorical}}} { ?s1 ?p1 ?o1 } .
    FILTER (NOT EXISTS { GRAPH {{{graphVmax}}} { ?s1 ?p1 ?o1 } }) 
  }
}