Anchor: Airplane workers are working on the tail section of a plane.
Entailed: The people are working on the tail of the plane.
Contradiction: The airplane workers are replacing the plane's tires.
Contradiction: There were no policemen on the train, only firefighters.
Contradiction: He asked many questions.
Contradiction: He wrote that it was totally uncharacteristic of America. 
Contradiction: I have to do it one hundred percent.