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 opens the box and looks inside. The attendee reads the label. He can clearly see that it is full of what?

assistant:  He can clearly see that it is full of pens, not pencils as the label suggests. He chuckles to himself, finding the mislabeling amusing.