Anchor: If she shrieked for help there was very little chance of anyone hearing her, whereas there was probably quite a good chance of Mrs. Vandemeyer's shooting her.
Entailed: Mrs. Vandemeyer might shoot her if she screamed for help. 
Contradiction: She held a gun and threatened to shoot Mrs. Vandemeyer. 
Contradiction: The man on the side of the street is wearing a bright red coat.
Contradiction: The discount should be equal to the simple cost difference.
Contradiction: Over the course of time the building seemed to loom.
Contradiction: Johnny is trying to play a game.