Anchor: Without hard evidence, the author believes that a presort discount of e of a cent might induce as many as 20 billion presorted pieces.
Entailed: A presort discount may induce as many as 20 billion presorted pieces.
Contradiction: There was hard evidence.
Contradiction: Someone is taking a hay ride on a sunny day.
Contradiction: The orange trees have foliage.
Contradiction: Our national cuisine is beyond-compare in its status at the top. 
Contradiction: An animal running across the sand