#purchase_order__order  a commercial document used to request someone to supply something in return for payment; "IBM received an order for a hundred computers"
  supertype:  #commercial_document__commercial_instrument  a document of or relating to commerce
  subtype:  #credit_order__bill-me_order  an order that is received without payment; requires billing at a later date
     subtype:  #open_account  an unpaid credit order
  subtype:  #indent  (British) an order for goods to be exported or imported
  subtype:  #market_order  an order to a broker to sell or buy stocks or commodities at the prevailing market price
  subtype:  #stop_order__stop-loss_order  an order to a broker to sell (buy) when the price of a security falls (rises) to a designated level
  subtype:  #stop_payment  a depositor's order to a bank to refuse payment on a check
  subtype:  #mail_order  a purchase negotiated by mail

No statement uses or specializes #purchase_order; click here to add one.