Anchor: They've arrested him ”they've arrested Mr. Cavendish!"
Entailed: Mr. Cavendish got arrested for some reason.
Contradiction: Mr. Cavendish was not arrested and walked free
Contradiction: Two cats are chasing each other down the street
Contradiction: Krakew was an independent city-state for 30 years.
Contradiction: I did not start watching TV til the mid nineties. 
Contradiction: The cost coverage for U.S. outbound mail would be reduced from 144.