question: Which film directed by M1 was written by M2 's employee and edited by M3 's writer
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.film .
  ?x0 ns:film.film.directed_by M1 .
  ?x0 ns:film.film.edited_by ?x1 .
  ?x0 ns:film.film.written_by ?x2 .
  ?x1 ns:film.writer.film M3 .
  ?x2 ns:people.person.employment_history/ns:business.employment_tenure.company M2
  }