Anchor: A person in skis is jumping off the side of a tree while someone records it.
Entailed: A person jumps off the side of a tree wearing skis.
Contradiction: A young male catches a giant wave with his surfboard.
Contradiction: Aix is retracting its thermal facilities while enhancing its waterfront. 
Contradiction: The dog jumped.
Contradiction: The girl is doing gymnastics.
Contradiction: Two people are on the water.