Anchor: A surfer is caching a wave.
Entailed: A surfer rides a wave.
Contradiction: A surfer carries his board into the water.
Contradiction: I gave you five chances to save yourself. 
Contradiction: The temple complex became Kytoto's main center.
Contradiction: There is no difference in quality for the case of literature reviews. 
Contradiction: they had classes on the SAT, didn't they?