question: Which executive producer and writer of M1 was a person that M2 was written by and directed by
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:people.person .
  ?x0 ns:film.director.film M2 .
  ?x0 ns:film.producer.films_executive_produced M1 .
  ?x0 ns:film.writer.film M1 .
  ?x0 ns:film.writer.film M2
  }