question: Did a Canadian film director executive produce M3 , M4 , M5 , M6 , and M7 and edit M1 and M2
query: SELECT count(*) WHERE {
  ?x0 a ns:film.director .
  ?x0 ns:film.editor.film M1 .
  ?x0 ns:film.editor.film M2 .
  ?x0 ns:film.producer.films_executive_produced M3 .
  ?x0 ns:film.producer.films_executive_produced M4 .
  ?x0 ns:film.producer.films_executive_produced M5 .
  ?x0 ns:film.producer.films_executive_produced M6 .
  ?x0 ns:film.producer.films_executive_produced M7 .
  ?x0 ns:people.person.nationality ns:m.0d060g
  }