Anchor: A worker in an orange vest is using a shovel.
Entailed: A worker with an organce vest is using a shovel.
Contradiction: No bunnies are wearing an orange vest and using a shovel.
Contradiction: The lawyer didn't take her pulse. 
Contradiction: Goodness! I wouldn't go near to see the acrobats.
Contradiction: Data shows that every patient seeks referral after being in the emergency room.
Contradiction: Two dogs are playing outside.