question: Were M3 , M4 , and M5 edited by a screenwriter and edited by a film producer that M2 was edited by
query: SELECT count(*) WHERE {
  ?x0 a ns:film.writer .
  ?x1 a ns:film.producer .
  ?x1 ns:film.editor.film M2 .
  M3 ns:film.film.edited_by ?x0 .
  M3 ns:film.film.edited_by ?x1 .
  M4 ns:film.film.edited_by ?x0 .
  M4 ns:film.film.edited_by ?x1 .
  M5 ns:film.film.edited_by ?x0 .
  M5 ns:film.film.edited_by ?x1
  }