question: Which sequel of a film was written by M1 's Italian director
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.film.prequel ?x1 .
  ?x0 ns:film.film.written_by ?x2 .
  ?x1 a ns:film.film .
  ?x2 ns:film.director.film M1 .
  ?x2 ns:people.person.nationality ns:m.03rjj
  }