question: Were M1 and M3 edited by M1 's writer , executive produced by M2 , and written by a film director
query: SELECT count(*) WHERE {
  ?x0 a ns:film.director .
  ?x1 ns:film.writer.film M1 .
  M1 ns:film.film.edited_by ?x1 .
  M1 ns:film.film.executive_produced_by M2 .
  M1 ns:film.film.written_by ?x0 .
  M3 ns:film.film.edited_by ?x1 .
  M3 ns:film.film.executive_produced_by M2 .
  M3 ns:film.film.written_by ?x0
  }