dialogue: #Person1#: Tom, how do you think of second-hand goods?
  #Person2#: Why did you ask that? Do you want to buy the used goods?
  #Person1#: I'm considering buying a second-hand computer for I'm short of money now.
  #Person2#: You know the car I'm driving, which is still in good condition though it is second-hand. And it only cost me 300 dollars. It was so cheap.
  #Person1#: But do you really mean that the second - hand goods are just as good as the new ones?
  #Person2#: It depends. So you must be careful buying second-hand goods.
summary: #Person1# asks Tom about second-hand goods because #Person1# wants to buy a second-hand computer. Tom tells #Person1# it might be good, but #Person1# needs to be careful.
topic: second-hand goods