Anchor: How well they measure what they are trying to measure), but also on (1) the extent to which the risks being valued are similar, and (2) the extent to which the subjects in the studies are similar to the population affected by changes in pollution concentrations.
Entailed:  How much the study participants are like the people impacted by variance in amount of pollution.
Contradiction: This study is about a new heart disease medication.
Contradiction: The Postal Service changes will have no effect on competitors.
Contradiction: We worry about SO2 levels.
Contradiction: Where did Jane go?
Contradiction: Two men jump in the air and compete to catch the football.