Anchor: Two men sit outside of an apartment playing a board game, while a third man watches.
Entailed: Three men are outside.
Contradiction: Three men are playing basketball.
Contradiction: I have a recipe for burgundy meatballs, and it is really terrible. 
Contradiction: Someone is sketching a picture of two girls.
Contradiction: A group of dogs are fighting.
Contradiction: I don't like some of the Macintosh computer's features.