question: Was M1 written by M2 and M3 , directed by M4 , M5 , and M6 , and edited by a producer of M0
query: SELECT count(*) WHERE {
  ?x0 ns:film.producer.film|ns:film.production_company.films M0 .
  M1 ns:film.film.directed_by M4 .
  M1 ns:film.film.directed_by M5 .
  M1 ns:film.film.directed_by M6 .
  M1 ns:film.film.edited_by ?x0 .
  M1 ns:film.film.written_by M2 .
  M1 ns:film.film.written_by M3
  }