question: Were M2 , M3 , M4 , M5 , and M6 directed by a film editor and edited by M0 's executive producer
query: SELECT count(*) WHERE {
  ?x0 ns:film.producer.films_executive_produced M0 .
  ?x1 a ns:film.editor .
  M2 ns:film.film.directed_by ?x1 .
  M2 ns:film.film.edited_by ?x0 .
  M3 ns:film.film.directed_by ?x1 .
  M3 ns:film.film.edited_by ?x0 .
  M4 ns:film.film.directed_by ?x1 .
  M4 ns:film.film.edited_by ?x0 .
  M5 ns:film.film.directed_by ?x1 .
  M5 ns:film.film.edited_by ?x0 .
  M6 ns:film.film.directed_by ?x1 .
  M6 ns:film.film.edited_by ?x0
  }