Anchor: Clearly the Postal Service could do more to transfer some of these operations to the private sector through worksharing discounts.
Entailed: The Postal Service could transfer operations to the private sector through work sharing discounts.
Contradiction: There is nothing the Postal Service can do to transfer these operations to the private sector.
Contradiction: Please go on, I have all the time to speak. 
Contradiction: Saving the Social Security surpluses produces unified budget surpluses for almost 20 years.
Contradiction: The modern Castillo de Santa Barbara is built at the bottom of a valley, 500 meters below the city.
Contradiction: It doesn't look like that to me.