Did M3 's American art director 's country of nationality employ M0 and employ M1
SELECT count(*) WHERE {
?x0 ^ns:people.person.nationality ?x1 .
?x0 ns:business.employer.employees/ns:business.employment_tenure.person M0 .
?x0 ns:business.employer.employees/ns:business.employment_tenure.person M1 .
?x1 ns:film.film_art_director.films_art_directed M3 .
?x1 ns:people.person.nationality ns:m.09c7w0
}