question: Which film was written by M1 and M2 and executive produced by a executive producer , director , and writer of M3
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.film .
  ?x0 ns:film.film.executive_produced_by ?x1 .
  ?x0 ns:film.film.written_by M1 .
  ?x0 ns:film.film.written_by M2 .
  ?x1 ns:film.director.film M3 .
  ?x1 ns:film.producer.films_executive_produced M3 .
  ?x1 ns:film.writer.film M3
  }