Was M2 a art director whose employer was acquired by M0 and acquired M1
SELECT count(*) WHERE {
?x0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M0 .
?x0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M1 .
M2 a ns:film.film_art_director .
M2 ns:people.person.employment_history/ns:business.employment_tenure.company ?x0
}