Anchor: Furthermore, when the options were fixed so that a boy could not give his group more without sacrificing profits for both groups, the boys still chose to maximize the difference in rewards between groups.
Entailed: This study showed that the boys in question were more interested in going with the option that provided the largest chance of a larger reward than the other groups would receive. 
Contradiction: The participants in this study were girls playing a variety of board games. 
Contradiction: Trained practitioners could identify 100% of acutely intoxicated patients.
Contradiction: The woman is in blue
Contradiction: the students are under the ocean
Contradiction: The women are getting a picture taken.