Did M3 and M6 star a Chinese art director that M2 starred and star M4 and M5
SELECT count(*) WHERE {
?x0 a ns:film.film_art_director .
?x0 ns:film.actor.film/ns:film.performance.film M2 .
?x0 ns:people.person.nationality ns:m.0d05w3 .
M3 ns:film.film.starring/ns:film.performance.actor ?x0 .
M3 ns:film.film.starring/ns:film.performance.actor M4 .
M3 ns:film.film.starring/ns:film.performance.actor M5 .
M6 ns:film.film.starring/ns:film.performance.actor ?x0 .
M6 ns:film.film.starring/ns:film.performance.actor M4 .
M6 ns:film.film.starring/ns:film.performance.actor M5
}