Anchor: A group of men standing on some sort of staging.
Entailed: There is a group of men standing together.
Contradiction: There is a group of women singing.
Contradiction: First-Class Mail is never used to send bills.
Contradiction: I was on a jury doing the Fourth of July for a murder trial.  
Contradiction: You can sit down and listen at the same time every day.
Contradiction: Confirmation of the pattern is made when the findings fit.