question: Were M2 and M3 executive produced by a film producer and directed by M1 's editor , cinematographer , and writer
query: SELECT count(*) WHERE {
  ?x0 a ns:film.producer .
  ?x1 ns:film.cinematographer.film M1 .
  ?x1 ns:film.editor.film M1 .
  ?x1 ns:film.writer.film M1 .
  M2 ns:film.film.directed_by ?x1 .
  M2 ns:film.film.executive_produced_by ?x0 .
  M3 ns:film.film.directed_by ?x1 .
  M3 ns:film.film.executive_produced_by ?x0
  }