answer: #Person1# tells #Person2# that #Person1# saw an interesting tv program about elderly people last night and it encouraged physical exercise.
documents: #Person1#: I saw an interesting program on TV last night. It was about elderly people.
  #Person2#: And what did the program say?
  #Person1#: It said that people with a positive attitude 7 tend to live longer and happier.
  #Person2#: I think that many physicians 8 now agree with that idea.
  #Person1#: And the TV program also said that physical exercise helps people deal with stress.
  #Person2#: And the most active older people seem to enjoy some kind of physical exercise. My father is over 60 years old, and he lifts weights every day.