question: Was M0 's prequel 's prequel executive produced by a art director
query: SELECT count(*) WHERE {
  ?x0 ns:film.film.executive_produced_by ?x1 .
  ?x0 ns:film.film.sequel ?x2 .
  ?x1 a ns:film.film_art_director .
  ?x2 ns:film.film.sequel M0
  }