question: Who was a actor that M4 , M5 , and M6 were executive produced by and M2 and M3 were written by
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.actor .
  ?x0 a ns:people.person .
  ?x0 ns:film.producer.films_executive_produced M4 .
  ?x0 ns:film.producer.films_executive_produced M5 .
  ?x0 ns:film.producer.films_executive_produced M6 .
  ?x0 ns:film.writer.film M2 .
  ?x0 ns:film.writer.film M3
  }