Anchor: A middle-aged man on a yellow motor scooter crosses the street.
Entailed: An adult man is crossing the street on a scooter.
Contradiction: A man is riding both scooter and a bike.
Contradiction: No but what are the colors? 
Contradiction: A child is in a pool.
Contradiction: The women are playing chess on the ocean floor.
Contradiction: I could get help any time I needed it.