Anchor: A Food Service Worker sitting on the Counter.
Entailed: A person is sitting.
Contradiction: A work is standing serving food.
Contradiction: The activities are used to identify rewards for fraud. 
Contradiction: The collection contains work from world-renown artists like Raphael, Rembrandt, and Velazquez.
Contradiction: I feel safe leaving the plants up there.
Contradiction: Alfred wasn't with us.