Did M2 , M3 , and M4 acquire a production company that was founded by M1
SELECT count(*) WHERE {
?x0 a ns:film.production_company .
?x0 ns:organization.organization.founders M1 .
M2 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired ?x0 .
M3 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired ?x0 .
M4 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired ?x0
}