question: Did M4 produce and direct a film that M1 , M2 , and M3 wrote and produced
query: SELECT count(*) WHERE {
  ?x0 a ns:film.film .
  ?x0 ns:film.film.produced_by|ns:film.film.production_companies M1 .
  ?x0 ns:film.film.produced_by|ns:film.film.production_companies M2 .
  ?x0 ns:film.film.produced_by|ns:film.film.production_companies M3 .
  ?x0 ns:film.film.written_by M1 .
  ?x0 ns:film.film.written_by M2 .
  ?x0 ns:film.film.written_by M3 .
  M4 ns:film.director.film ?x0 .
  M4 ns:film.producer.film|ns:film.production_company.films ?x0
  }