question: Who wrote M6 's prequel , executive produced M1 , and directed M2 , M3 , M4 , and M5
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:people.person .
  ?x0 ns:film.director.film M2 .
  ?x0 ns:film.director.film M3 .
  ?x0 ns:film.director.film M4 .
  ?x0 ns:film.director.film M5 .
  ?x0 ns:film.producer.films_executive_produced M1 .
  ?x0 ns:film.writer.film ?x1 .
  ?x1 ns:film.film.sequel M6
  }