question: Was a production company that M2 acquired , M4 was acquired by , and M3 acquired M0
query: SELECT count(*) WHERE {
  M0 a ns:film.production_company .
  M0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M2 .
  M0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M3 .
  M0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M4
  }