Anchor: A person in brown shirt is doing rock climbing.
Entailed: Someone is climbing rocks.
Contradiction: Someone is climbing the stairs.
Contradiction: The man is asleep.
Contradiction: Wynette's fifth marriage lasted at least 20 years. 
Contradiction: Someone did not say good morning to Mr. Whittington.
Contradiction: He may have had vertigo caused by too much sun, dust, and riding.