Anchor: A teenager wearing striped shorts and no shirt is skateboarding down a road a long the ocean.
Entailed: the teenager is moving around outside
Contradiction: the teenager is asleep in a tent
Contradiction: The snowboarder is sleeping on the mountainside.
Contradiction: A man buys food.
Contradiction: Callie did not care and ignored him. 
Contradiction: You can overcome the resistance over time.