Was M2 M1 's sequel 's Japanese director 's employer
SELECT count(*) WHERE {
?x0 ns:film.director.film ?x1 .
?x0 ns:people.person.nationality ns:m.03_3d .
?x1 ns:film.film.prequel M1 .
M2 ns:business.employer.employees/ns:business.employment_tenure.person ?x0
}