Anchor: A dog runs by two cows.
Entailed: The dog has legs.
Contradiction: The dog is sitting.
Contradiction: North American sugar was helping to catapult France to economic supremacy. 
Contradiction: Case studies should be based on a comprehensive understanding of the situation being studied.
Contradiction: The memo provided confusing and blatantly false definitions for subsidies and vouchers.
Contradiction: girls are snacking