question: Was a Italian British person that M4 and M5 starred a actor
query: SELECT count(*) WHERE {
  ?x0 a ns:film.actor .
  ?x0 a ns:people.person .
  ?x0 ns:film.actor.film/ns:film.performance.film M4 .
  ?x0 ns:film.actor.film/ns:film.performance.film M5 .
  ?x0 ns:people.person.nationality ns:m.03rjj .
  ?x0 ns:people.person.nationality ns:m.07ssc
  }