question: Was M0 a production company that was acquired by M2 , M3 , M4 , M5 , and M6 and was acquired by M7
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.acquired_by/ns:business.acquisition.acquiring_company M4 .
  M0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M5 .
  M0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M6 .
  M0 ns:organization.organization.acquired_by/ns:business.acquisition.acquiring_company M7
  }