question: What film was directed by M2 and M3 , executive produced by M1 , and directed by M4 's writer
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.film .
  ?x0 ns:film.film.directed_by ?x1 .
  ?x0 ns:film.film.directed_by M2 .
  ?x0 ns:film.film.directed_by M3 .
  ?x0 ns:film.film.executive_produced_by M1 .
  ?x1 ns:film.writer.film M4
  }