Anchor: Both sides trapped in a narrow space on a fast moving train, with no choice but to fight.
Entailed: They didn't have a choice other than to fight.
Contradiction: They didn't fight at all.
Contradiction: Adair Margo was never involved with a junior league project. 
Contradiction: You can find membership information on the website.
Contradiction: A baby is playing on the lamp.
Contradiction: The seventh chapter is about research.