question: Were M2 , M5 , and M6 written by M3 , written by M4 , and directed by a Italian screenwriter
query: SELECT count(*) WHERE {
  ?x0 a ns:film.writer .
  ?x0 ns:people.person.nationality ns:m.03rjj .
  M2 ns:film.film.directed_by ?x0 .
  M2 ns:film.film.written_by M3 .
  M2 ns:film.film.written_by M4 .
  M5 ns:film.film.directed_by ?x0 .
  M5 ns:film.film.written_by M3 .
  M5 ns:film.film.written_by M4 .
  M6 ns:film.film.directed_by ?x0 .
  M6 ns:film.film.written_by M3 .
  M6 ns:film.film.written_by M4
  }