answer: #Person1# feels exhausted about #Person1#'s exercise class while #Person2# thinks it's easy and wants to have a try.
documents: #Person1#: I'm exhausted. My new exercise class is so hard,
  #Person2#: I think it is easy. I could work in your class with no problem.
  #Person1#: You thing so?
  #Person2#: Oh, without a doubt. When is the next class?
  #Person1#: Tomorrow morning. Try it.
  #Person2#: No problem.
  #Person1#: Are you going to this class this morning?
  #Person2#: Of course, easy. No sweat.
  #Person1#: You're no able to move after this class.
  #Person2#: Are you kidding me? It's going to be up a piece of cake.
  #Person1#: You want to bet?
  #Person2#: Yeah, what't the bet?
  #Person1#: I bet I can go one hour in your class this morning and not feel a thing.