Anchor: Two police officers wearing florescent vests standing on the sidewalk while people pass by.
Entailed: Some police officers are wearing vests.
Contradiction: The police are alone.
Contradiction: The boy casts his fishing line back into the river, angry that the fish had gotten away.
Contradiction: Humans walking
Contradiction: A dog leaps high to catch a ball thrown by its owner.
Contradiction: The votes for the Nixon inquiry had over 400 tallied on one side and only 4 on the other.