question: Was M3 edited by a Canadian female art director
query: SELECT count(*) WHERE {
  ?x0 a ns:film.film_art_director .
  ?x0 ns:people.person.gender ns:m.02zsn .
  ?x0 ns:people.person.nationality ns:m.0d060g .
  M3 ns:film.film.edited_by ?x0
  }