question: What art director and editor of M0 and M1 was a film 's editor
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.editor.film ?x1 .
  ?x0 ns:film.editor.film M0 .
  ?x0 ns:film.editor.film M1 .
  ?x0 ns:film.film_art_director.films_art_directed M0 .
  ?x0 ns:film.film_art_director.films_art_directed M1 .
  ?x1 a ns:film.film
  }