Anchor: The beach has fine pink sand; powerful breakers throw sea spray into the air.
Entailed: There is fine pink sand at the beach. 
Contradiction: The beach is full of dirty yellow sand. 
Contradiction: A man wearing a t-shirt walks through the doorway.
Contradiction: To see some examples of these AUs, click here and here.
Contradiction: A teenager holding a bottle.
Contradiction: People are in a hot air balloon.