Anchor: Even Thorn had sat up to watch the short duel.
Entailed: Thorn was watching the fight.
Contradiction: Thorn didn't want to see the fight.
Contradiction: At the foot of the bridge, there's a lone statue of a tiger.
Contradiction: David Foster Wallace has at one point written about his opinion on Updike's Toward the End of Time. 
Contradiction: She stayed downstairs and I was not doing anything else.
Contradiction: Many nerds can be handsome or self-confident.