Was M4 produced by a production company that was acquired by M1 and M2 and acquired M3
SELECT count(*) WHERE {
?x0 a ns:film.production_company .
?x0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M1 .
?x0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M2 .
?x0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M3 .
M4 ns:film.film.produced_by|ns:film.film.production_companies ?x0
}