#holding_company  a company with controlling shares in other companies
  supertype:  company  an institution created to conduct business; "he only invests in large well-established companies"; "he started the company in his garage"
  subtype:  bank_holding_company  a holding company owning or controlling one or more banks
     subtype:  multibank_holding_company__multibankholdingcompany  a bank holding company owning several banks

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