Anchor: A snowboarder is jumping in the air over a snow slope.
Entailed: There is a person doing snowboard jumps.
Contradiction: The person is eating s'mores by a campfire.
Contradiction: The kite is buried in mud.
Contradiction: Dell was more valuable five years ago.
Contradiction: Schwartz only used data on the incidence of leukemia.
Contradiction: He is clearly not stupid.