Anchor: People are riding on a train.
Entailed: People are on a train.
Contradiction: The people are on a boat.
Contradiction: You can't possibly miss the giant bust of Christopher Columbus.
Contradiction: Anyway, she continued, "I am not aware if he does."
Contradiction: There's a wall which we can use as a natural choke point.
Contradiction: Multiple eras of history have yet to be added by the kingdom of the Pharaohs.