Anchor: A girl in a blue shirt rides her bicycle on the sidewalk.
Entailed: A girl is riding a bike
Contradiction: A girl is sleeping on the sidewalk.
Contradiction: Tobacco products are legally available for sale to people under the age of 12 because of FDA regulations. 
Contradiction: My name is Bill, and you must be Fernando
Contradiction: A man relaxing in a hammock.
Contradiction: Women are preparing dinner.