Anchor: I believe she has passed quite a stiff exam."
Entailed: I believe she passed an exam.
Contradiction: She failed all of her tests.
Contradiction: The older woman avoided getting hit.
Contradiction: The GAAP for U.S. government reporting is determined by the following hierarchy. 
Contradiction: Allen didn't think about taxes.
Contradiction: If you heard towards the palm tree, you will pass the Sanctuary of Apollo.