Anchor: A man in a black hat is pushing a cart full of boxes down the street as a lady in brown boots walks by.
Entailed: There are at least two boxes on the cart.
Contradiction: A man is pushing an empty cart in the library.
Contradiction: Weighing the flour in his hand, the Kentuckian stood up. 
Contradiction: The man has a bike.
Contradiction: Tigers do tai chi.
Contradiction: Transport, sewage and water treatment plants