Anchor: Two swans swimming near the shore.
Entailed: Two swans are in the water.
Contradiction: Two swans are flying over the shore.
Contradiction: A woman is laughing.
Contradiction: Someone is creating a work of art.
Contradiction: I'm not worried about palladium poisoning unlike some people. 
Contradiction: Schomburg Library of Nineteenth-Century Black Women Writers has forty volumes.