question: Were M3 , M5 , M6 , and M7 edited by M4 and produced by a Canadian employee of M0 and M1
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M0 .
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company M1 .
  ?x0 ns:people.person.nationality ns:m.0d060g .
  M3 ns:film.film.edited_by M4 .
  M3 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
  M5 ns:film.film.edited_by M4 .
  M5 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
  M6 ns:film.film.edited_by M4 .
  M6 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
  M7 ns:film.film.edited_by M4 .
  M7 ns:film.film.produced_by|ns:film.film.production_companies ?x0
  }