user: There is a closed box on the table in an empty meeting room, in which a seminar is about to take place. The box is filled with pens, and there are no pencils in it. Yet, it is labeled with the word "pencils" and not "pens". The first attendee walks into the room and sits in a chair in front of the box. He has never seen the box before. The attendee does not open the box and does not look inside. The attendee reads the label. He opens the box and looks inside. He can clearly see that it is full of

assistant: He can clearly see that it is full of pens. He is momentarily confused, as the label on the box clearly states "pencils". He picks up one of the pens, examining it closely to confirm his observation. Yes, it is a pen.