Anchor: A skier goes down a slope.
Entailed: A skier is outside.
Contradiction: Skiers are seated around a fire inside the lodge.
Contradiction: The photographer takes a picture of the beach.
Contradiction: In a good case study generalizations do not exceed the basis.
Contradiction: America has never been a part of a war, and as such, has little need for basic magnesium. 
Contradiction: They are going to the shop.