Anchor: We shall have a thunderstorm. Alas, that these harmonious moments can never endure! 
Entailed: We'll have a storm.
Contradiction: The sun shone with no sign of storm.
Contradiction: The only example is Jerry Falwell's Jew Town. 
Contradiction: The two men are having a meal.
Contradiction: It's easy to do masters degrees of any kind at night.
Contradiction: Two people are playing music.