Anchor: Three people stand at the top of an outdoor staircase.
Entailed: Three people are outside.
Contradiction: Three people are racing airplanes.
Contradiction: Two men at a restaurant.
Contradiction: He grinned.  
Contradiction: She didn't really care about having that flat at all and the new she couldn't have it didn't phase her. 
Contradiction: Who can say that winter is not just a random occurrence of statistic improbability?