Anchor: A boy in a white t-shirt does a trick with his skateboard in a skate park.
Entailed: A boy practices tricks with his skateboard outdoors.
Contradiction: A boy is surfing.
Contradiction: A girl plays with a scooter.
Contradiction: The boy is in a water park.
Contradiction: A boy is picking up a watermelon.
Contradiction: A boy in a blue t-shirt does a trick with his skate board on the sidewalk.