question: Which film distributed by M1 and distributed by M2 , M3 , and M4 did M5 's Canadian writer executive produce
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.film .
  ?x0 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor M1 .
  ?x0 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor M2 .
  ?x0 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor M3 .
  ?x0 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor M4 .
  ?x0 ns:film.film.executive_produced_by ?x1 .
  ?x1 ns:film.writer.film M5 .
  ?x1 ns:people.person.nationality ns:m.0d060g
  }