question: Were M3 and M4 written by a Italian writer and star of M0 and M1
query: SELECT count(*) WHERE {
  ?x0 ns:film.actor.film/ns:film.performance.film M0 .
  ?x0 ns:film.actor.film/ns:film.performance.film M1 .
  ?x0 ns:film.writer.film M0 .
  ?x0 ns:film.writer.film M1 .
  ?x0 ns:people.person.nationality ns:m.03rjj .
  M3 ns:film.film.written_by ?x0 .
  M4 ns:film.film.written_by ?x0
  }