question: What film edited by and written by M1 was edited by and directed by M2 and M3
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.film .
  ?x0 ns:film.film.directed_by M2 .
  ?x0 ns:film.film.directed_by M3 .
  ?x0 ns:film.film.edited_by M1 .
  ?x0 ns:film.film.edited_by M2 .
  ?x0 ns:film.film.edited_by M3 .
  ?x0 ns:film.film.written_by M1
  }