question: Who edited a film directed , written , and produced by M2 and M3
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:people.person .
  ?x0 ns:film.editor.film ?x1 .
  ?x1 a ns:film.film .
  ?x1 ns:film.film.directed_by M2 .
  ?x1 ns:film.film.directed_by M3 .
  ?x1 ns:film.film.produced_by|ns:film.film.production_companies M2 .
  ?x1 ns:film.film.produced_by|ns:film.film.production_companies M3 .
  ?x1 ns:film.film.written_by M2 .
  ?x1 ns:film.film.written_by M3
  }