user: A vault that's been unopened for over 100 years has just been unlocked. Inside lies a closed box with a label that reads 'books'. It does not mention 'gems'. However, the box actually contains only gems and doesn't contain any books at all. Steve, an inspector, approaches the vault. Steve does not open the box and does not look inside. Steve reads the label. A cousin calls Steve and tells him that the box has gems in it, and that he should ignore the label that says 'books'. Steve believes his cousin.

assistant: He opens the box and looks inside. He can clearly see that it is full of gems.