Anchor: A male skateboarder skates off the steps to make a trick move for the camera.
Entailed: A man is performing a skateboarding maneuver.
Contradiction: A man is performing a BMX move for the camera.
Contradiction: Daniel disagreed with what I said.
Contradiction: I believe the children are learning. 
Contradiction: This is the first study.
Contradiction: In 1989 the government asked parents to provide the Social Security number of their day-care provider.