Did M1 and M2 acquire M0 's art director 's employer
SELECT count(*) WHERE {
?x0 ns:business.employer.employees/ns:business.employment_tenure.person ?x1 .
?x1 ns:film.film_art_director.films_art_directed M0 .
M1 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired ?x0 .
M2 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired ?x0
}