question: Was a company that M2 and M3 were acquired by and M4 and M5 were acquired by M0
query: SELECT count(*) WHERE {
  M0 a ns:business.employer .
  M0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M2 .
  M0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M3 .
  M0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M4 .
  M0 ns:organization.organization.companies_acquired/ns:business.acquisition.company_acquired M5
  }