question: Were M4 and M5 edited by and directed by a Chinese art director that played M2 and M3
query: SELECT count(*) WHERE {
  ?x0 a ns:film.film_art_director .
  ?x0 ns:film.actor.film/ns:film.performance.character M2 .
  ?x0 ns:film.actor.film/ns:film.performance.character M3 .
  ?x0 ns:people.person.nationality ns:m.0d05w3 .
  M4 ns:film.film.directed_by ?x0 .
  M4 ns:film.film.edited_by ?x0 .
  M5 ns:film.film.directed_by ?x0 .
  M5 ns:film.film.edited_by ?x0
  }