question: Was M2 executive produced by a screenwriter , executive produced by a cinematographer , written by M4 , and executive produced by M3
query: SELECT count(*) WHERE {
  ?x0 a ns:film.writer .
  ?x1 a ns:film.cinematographer .
  M2 ns:film.film.executive_produced_by ?x0 .
  M2 ns:film.film.executive_produced_by ?x1 .
  M2 ns:film.film.executive_produced_by M3 .
  M2 ns:film.film.written_by M4
  }