question: Were M3 , M4 , and M5 executive produced by a screenwriter and edited by M2 's Canadian director
query: SELECT count(*) WHERE {
  ?x0 a ns:film.writer .
  ?x1 ns:film.director.film M2 .
  ?x1 ns:people.person.nationality ns:m.0d060g .
  M3 ns:film.film.edited_by ?x1 .
  M3 ns:film.film.executive_produced_by ?x0 .
  M4 ns:film.film.edited_by ?x1 .
  M4 ns:film.film.executive_produced_by ?x0 .
  M5 ns:film.film.edited_by ?x1 .
  M5 ns:film.film.executive_produced_by ?x0
  }