Anchor: A man working on something underneath a bridge.
Entailed: The man is human.
Contradiction: The man is working on top of a bridge.
Contradiction: I traveled back to Washington by an evening bus.
Contradiction: Now that I think back on it with hindsight, I have doubts about whether or not it was worth the cost.
Contradiction: The DART only travels south along the coast.
Contradiction: A lady performs for an audience.