question: Was a production company acquired by M2 , acquired by M3 , and acquired by M4 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.acquired_by/ns:business.acquisition.acquiring_company M4
  }