answer: John nodded off in the library and Sheila wakes him up. Then John talks about his boring psychology class and Sheila tells an embarrassing experience of her history professor.
documents: #Person1#: Hey, John. Rise and shine.
  #Person2#: What time is it, Sheila? How long have I been here?
  #Person1#: Hmm... about 2 hours. I think the library is a quiet place for a sleeping.
  #Person2#: You've got a point. I always mean to study hard, but I nod off soon. Maybe it's too quiet here.
  #Person1#: You were thinking Edwards Carlson's psychology classes, right?
  #Person2#: Yeah, he's a nice teacher. But he just can't seem to come down to earth. He seemed to be talking to himself the whole class. It made everyone sleepy.
  #Person1#: You should have been in my history classes with Professor Rivers. He always encourages his students to collect information after class. Some of his students are wonderful. Once a student got up and challenged him to name 6 women who made great contributions to the American Revolution. It really beat him. He just listed 3.
  #Person2#: It was really embarrassing for the teacher.
  #Person1#: Especially when the student started telling him over a dozen names. But at last, the teacher praised her.
  #Person2#: After all, I doubt whether many students can name even one. It's really a different question.
  #Person1#: That's true. I sure I can't.