Anchor: As an economic matter, it is clear that a postal service is better off having a customer at a near-cost price than not having the customer at all.
Entailed: It's worse if, from an economic point of view, a postal service doesn't have a customer at all.
Contradiction: It's better if, from an economic point of view, a postal service doesn't have a customer at all.
Contradiction: Everybody is walking.
Contradiction: The trees could have been around in Jesus's time.
Contradiction: Due to the lack of interest in the exhibition, the lines to get into it are always very short. 
Contradiction: It depends on how you score it.