answer: #Person2#'s sightseeing in the park with his family. #Person2# takes a photo for his daughter, then he requests a passer-by to take a photo of the whole family.
documents: #Person1#: Look, Dad, many people are doing morning exercises here.
  #Person2#: Yes. I used to come out here with my grandpa as child.
  #Person1#: Really? You were so happy then.
  #Person2#: Aren't you happy now? I hadn't seen the piano when I was a child.
  #Person1#: Daddy, don't mention it.
  #Person2#: The park is so beautiful. It is a good thing I have taken the camera.
  #Person1#: Dad, I'd like to take a picture with the status.
  #Person2#: All right. Give me a big smile. Are you ready? Cheese!
  #Person1#: Daddy, we can't have a photo of the whole family. We can take one here.
  #Person2#: Excuse me, sir. Could you take a photo for us? Just press this button.