answer: #Person2# wants to buy some Treasury Certificates. #Person1# introduces Treasury Certificates and tells the difference between that and Bearer Certificates.
documents: #Person1#: Hello, there. How can I help?
  #Person2#: Hello. I'm hoping to buy some Treasury Certificates today. Are they available?
  #Person1#: Certainly, Visible Treasury Certificates. Then you can get a receipt from the savings office as proof of payment. Hence the'visible', you can see it.
  #Person2#: Ah, right. How much do I need to spend?
  #Person1#: The minimum is 100 RIB, and the maximum is 500, 000 RIB.
  #Person2#: How about Bearer Certificates? Are they different?
  #Person1#: Yes, they are different because they are printed by the Ministry of Finance in set amounts. Just 100 RIB, 500 RMB and 1, 000 RIB, you cannot choose from many amounts, you see.