question: Were M2 , M3 , M4 , M5 , M6 , and M7 written by a film director and edited by a cinematographer
query: SELECT count(*) WHERE {
  ?x0 a ns:film.director .
  ?x1 a ns:film.cinematographer .
  M2 ns:film.film.edited_by ?x1 .
  M2 ns:film.film.written_by ?x0 .
  M3 ns:film.film.edited_by ?x1 .
  M3 ns:film.film.written_by ?x0 .
  M4 ns:film.film.edited_by ?x1 .
  M4 ns:film.film.written_by ?x0 .
  M5 ns:film.film.edited_by ?x1 .
  M5 ns:film.film.written_by ?x0 .
  M6 ns:film.film.edited_by ?x1 .
  M6 ns:film.film.written_by ?x0 .
  M7 ns:film.film.edited_by ?x1 .
  M7 ns:film.film.written_by ?x0
  }