Anchor: A downhill skier with a backpack, on a background of mountains and wispy clouds.
Entailed: The skier is outdoors.
Contradiction: The skier is at home after a long day.
Contradiction: The risk is not worth the thrill.
Contradiction: In order to use it we have to go through a whole procedure
Contradiction: As a theoretical matter this may be avoidable.
Contradiction: A dog is getting some exercise in a field.