question: What did a film 's executive producer write , M0 write , M1 write , and M2 edit
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.film.edited_by M2 .
  ?x0 ns:film.film.written_by ?x1 .
  ?x0 ns:film.film.written_by M0 .
  ?x0 ns:film.film.written_by M1 .
  ?x1 ns:film.producer.films_executive_produced ?x2 .
  ?x2 a ns:film.film
  }