Anchor: A well dressed man in a suit plays piano for the band.
Entailed: A man is playing piano.
Contradiction: A sloppy teenager players the piano for the band.
Contradiction: An old man is about to kick a dog.
Contradiction: He worked all night baking; he wasn't in a hurry. 
Contradiction: A woman is provoking the monkeys.
Contradiction: The Federal Register notice evoked thousands of comments.