answer: #Person2# points out the way to the gas station for #Person1# and knows the price has gone up.
documents: #Person1#: Excuse me. Could you give me some directions?
  #Person2#: What are you looking for?
  #Person1#: A gas station. My car ran out of gas two blocks back.
  #Person2#: Walk straight ahead until you come to the second traffic light. Then turn right.
  #Person1#: Do you know the name of the street?
  #Person2#: I can't remember, but it's the second light.
  #Person1#: By the way, do you know the price of the gas now?
  #Person2#: I'm afraid I don't. But I do know the price has gone up.
  #Person1#: Thanks a lot.