answer: #Person2# drives #Person1# to Beijing Library. #Person1# wants to stop temporarily to buy some souvenirs in the exhibition of Chinese jades.
documents: #Person1#: Hey, taxi.
  #Person2#: Where to, sir?
  #Person1#: Beijing Library.
  #Person2#: Hop in, please.
  #Person1#: Is it a long ride to Beijing Library?
  #Person2#: It will take about thirty minutes because it is the rush hour.
  #Person1#: Thirty minutes, that will be all right. There are still fifty minutes to go before the library is open. Look, what are they doing on the square?
  #Person2#: It is an exhibition of Chinese jades. It is held each year. A nice collection jades of are on display and sold.
  #Person1#: Sounds great! Can you stop somewhere here for a minute? I will get some souvenirs for my friends.
  #Person2#: No problem.