question: Who was a film editor that M2 and M3 were executive produced by and M4 , M5 , and M6 were directed by
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.editor .
  ?x0 a ns:people.person .
  ?x0 ns:film.director.film M4 .
  ?x0 ns:film.director.film M5 .
  ?x0 ns:film.director.film M6 .
  ?x0 ns:film.producer.films_executive_produced M2 .
  ?x0 ns:film.producer.films_executive_produced M3
  }