Anchor: a boy in a purple shirt is doing a skateboard stunt on a wooden ramp beside a white building.
Entailed: the boy did tricks on a skateboard
Contradiction: the actors were dressed as clowns
Contradiction: A boy near a blue building was riding a bicycle and wearing a yellow shirt.
Contradiction: A boy rides his bike to school.
Contradiction: A boy is roller skating
Contradiction: A boy is wind surfing on the ocean.