Anchor: A man in a hard hat and work clothes is leaning over a railing.
Entailed: A man is leaning over a rail.
Contradiction: The man is not wearing any clothes.
Contradiction: The candidates debated whether or not the school should be shut down. 
Contradiction: There are men working on a construction site on the highway.
Contradiction: That is a mean way to phrase it.
Contradiction: The atmosphere of a small town is often relaxed and calm.