question: Was M1 directed by M6 , edited by M2 , M3 , M4 , and M5 , and produced by a production company 's employee
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.employment_history/ns:business.employment_tenure.company ?x1 .
  ?x1 a ns:film.production_company .
  M1 ns:film.film.directed_by M6 .
  M1 ns:film.film.edited_by M2 .
  M1 ns:film.film.edited_by M3 .
  M1 ns:film.film.edited_by M4 .
  M1 ns:film.film.edited_by M5 .
  M1 ns:film.film.produced_by|ns:film.film.production_companies ?x0
  }