Anchor: tight confidence interval around the best estimate of the mean concentration-response relationship.
Entailed: Tight confidence interval around the best estimate of the mean.
Contradiction: No confidence interval around the best estimate of the mean.
Contradiction: The dog is laying on the bed
Contradiction: He regularly whipped the slaves as he walked by.
Contradiction: the people are flying a plane
Contradiction: I think that air bags are important for safety reasons.