Was M1 a company that M3 was acquired by and a production company was acquired by
SELECT count(*) WHERE {
?x0 a ns:film.production_company .
M1 a ns:business.employer .
M1 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired ?x0 .
M1 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M3
}