Anchor: By 1994, the figure had reached 12.
Entailed: The figure had reached 12 by 1994.  
Contradiction: The figure had reached 20 by 1994
Contradiction: No matter what the situation, I'm always happy to receive a phone call.
Contradiction: The five horses all had riders.
Contradiction: A boy tosses the baseball.
Contradiction: A girl is dressed as an insect.