question: Was M2 written by M3 and M4 , directed by a executive producer and star of M1 , and written by a art director
query: SELECT count(*) WHERE {
  ?x0 a ns:film.film_art_director .
  ?x1 ns:film.actor.film/ns:film.performance.film M1 .
  ?x1 ns:film.producer.films_executive_produced M1 .
  M2 ns:film.film.directed_by ?x1 .
  M2 ns:film.film.written_by ?x0 .
  M2 ns:film.film.written_by M3 .
  M2 ns:film.film.written_by M4
  }