Anchor: A skull of rowers on a lake.
Entailed: People are on the lake.
Contradiction: A synchronized swim team is in the lake.
Contradiction: Alex Trebeck castigates an aggresive player on Jeopardy by staring straight into his eyes until the man's face melts as if he had disturbed the Ark of the Covenant.
Contradiction: I can get off at the park if you take me there. 
Contradiction: A bodyguard did count.
Contradiction: The child is playing