Anchor: We had a little bit of sex, mostly out of habit.
Entailed: Sex is something we had a little bit of. 
Contradiction: The one thing we had a lot of was sex. 
Contradiction: The boy is running around the block for exercise.
Contradiction: Cataracts block travel up the river.  
Contradiction: A man sits with a pair of bongo drums at his feet.
Contradiction: Was there a feeling of animosity down there when the announcement was made.