question: Was M2 edited by a art director , edited by M3 , and executive produced by a director and writer of M0
query: SELECT count(*) WHERE {
  ?x0 ns:film.director.film M0 .
  ?x0 ns:film.writer.film M0 .
  ?x1 a ns:film.film_art_director .
  M2 ns:film.film.edited_by ?x1 .
  M2 ns:film.film.edited_by M3 .
  M2 ns:film.film.executive_produced_by ?x0
  }