Anchor: Had she not lamented the fact that she knew no rich men? 
Entailed: Why wasn't she upset that she didn't know anyone who was wealthy?
Contradiction: She knew so many rich people she didn't know which one to pick.
Contradiction: The boy is in the kitchen.
Contradiction: A person is riding a bike
Contradiction: The subscript of Pb in the first equation refers to traditional elasticity.
Contradiction: Excluding one.