Anchor: A person with a red backpack squatting at the end of a dock.
Entailed: A person has a red backpack.
Contradiction: The backpack is blue.
Contradiction: This research isn't crucial as the field progresses from evaluating efficacy 
Contradiction: US Senators and Congressmen assembled and enacted the bill
Contradiction: Trial and error was the best method considering how much time was available.
Contradiction: The guy is participating in a water sport.