question: Were M2 and M6 directed by M5 , executive produced by a Chinese screenwriter , and written by M3 and M4
query: SELECT count(*) WHERE {
  ?x0 a ns:film.writer .
  ?x0 ns:people.person.nationality ns:m.0d05w3 .
  M2 ns:film.film.directed_by M5 .
  M2 ns:film.film.executive_produced_by ?x0 .
  M2 ns:film.film.written_by M3 .
  M2 ns:film.film.written_by M4 .
  M6 ns:film.film.directed_by M5 .
  M6 ns:film.film.executive_produced_by ?x0 .
  M6 ns:film.film.written_by M3 .
  M6 ns:film.film.written_by M4
  }