Anchor: Man playing guitar hero while another man watches.
Entailed: A man is playing a video game.
Contradiction: Two men are playing Mortal Kombat against each other.
Contradiction: It was incomprehensible that Inglethorp should remain silent, if he had been having an affair with Mrs. Raikes. 
Contradiction: A person is riding around on a two-wheeled vehicle.
Contradiction: How was your child-free date night?
Contradiction: A woman is riding a bicycle.