Anchor: Whales are still sighted here, but not frequently.
Entailed: Whales are seen here infrequently.
Contradiction: Whales are still sighted here frequently.
Contradiction: He has never been given an award for his Site. 
Contradiction: A brightly-dressed young guy is checking out something behind him.
Contradiction: The boy is rolling down the hill
Contradiction: The cells were starved to make them shut down metabolic functions.