Anchor: describing percent changes in payments per case due to changes in the prospective payment system for operating costs.
Entailed: Percent changes in payments per case is being described.
Contradiction: Nothing is being described  especially not percent changes.
Contradiction: You didn't say you work in Plano.
Contradiction: Gillette has the majority of the US razor market.
Contradiction: The person with tattoos hit someone on the head with the pan.
Contradiction: A man builds a sand castle.