answer: #Person2#' tells #Person1# Professor Wang's accident and his situation.
documents: #Person1#: Where are you going?
  #Person2#: I'm going to the hospital.
  #Person1#: What's the matter?
  #Person2#: Professor Wang was hurt in a traffic accident.
  #Person1#: That's too bad. How are things now?
  #Person2#: His life is hanging by a thread, and he is under an emergency treatment.