Did M4 star a Italian star of M1 , M2 , and M3
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film M1 .
?x0 ns:film.actor.film/ns:film.performance.film M2 .
?x0 ns:film.actor.film/ns:film.performance.film M3 .
?x0 ns:people.person.nationality ns:m.03rjj .
M4 ns:film.film.starring/ns:film.performance.actor ?x0
}