Anchor: A boy in a white t-shirt does skateboard tricks.
Entailed: A boy is playing on a skateboard.
Contradiction: A kid is surfing.
Contradiction: The Quinta Magnolia Park has a very expensive public pool.
Contradiction: I'm in school trying to finish a PhD thesis so I don't have a lot of spare time for watching TV.
Contradiction: The house became property of the French militia in 1814.
Contradiction: a woman is eating