question: Was a writer of M0 a Italian actor of M2 and M3
query: SELECT count(*) WHERE {
  ?x0 ns:film.actor.film/ns:film.performance.character M2 .
  ?x0 ns:film.actor.film/ns:film.performance.character M3 .
  ?x0 ns:film.writer.film M0 .
  ?x0 ns:people.person.nationality ns:m.03rjj
  }