question: Was M1 written by a art director , written by M3 and M4 , written by M5 , and executive produced by M2
query: SELECT count(*) WHERE {
  ?x0 a ns:film.film_art_director .
  M1 ns:film.film.executive_produced_by M2 .
  M1 ns:film.film.written_by ?x0 .
  M1 ns:film.film.written_by M3 .
  M1 ns:film.film.written_by M4 .
  M1 ns:film.film.written_by M5
  }