answer: #Person1# shows #Person2# around Westminster Abbey, Downing Street No.10, and Tower Bridge.
documents: #Person1#: Now, this is Westminster Abbey. It's one of the oldest buildings in London and in its architecture, you will recognize different styles.
  #Person2#: Wow, it's really splendid.
  #Person1#: There, to the left, you will see a small Street called Downing Street No.10, the last of its 10 houses has always been the living place of the British Prime Minister.
  #Person2#: Oh, is that the Tower Bridge?
  #Person1#: Yeah, look, the bridges parting in the middle and the two halves are moving upwards, a big ship is passing underneath.