answer: #Person1# and #Person2# are going to buy a book for the same class. They decide to split the cost and share the book because it's expensive.
documents: #Person1#: Excuse me, are you going to buy that book?
  #Person2#: Well, I need it for a class but it's awfully expensive.
  #Person1#: Oh, we must be in the same class. Introduction to British Literature?
  #Person2#: Yes, that's the one. Were you there yesterday for the first class?
  #Person1#: I sure was. Professor Robert really seems to know his subject.
  #Person2#: Yes, I took his Shakespeare course last semester and it was very good. He likes listening to his students.
  #Person1#: That's a relief. I'm a biology major and I was a little uncertain about taking an English course.
  #Person2#: I'm an English major and this is a required course. But now I'm in trouble because I'm not sure I can afford this book.
  #Person1#: Hey, I've got an idea. Why don't we split the cost and share the book?
  #Person2#: Sounds great. Do you live on campus?
  #Person1#: Yeah, I live on the 10th floor of Butler Hall.
  #Person2#: Perfect. I live on the 3rd floor of Butler. We should have no trouble sharing the book. I can bring it up to your room right after I wrap up the assignment.
  #Person1#: It's a deal.