Anchor: Following the approach of the Section 812 Prospective Report, we estimated the percentage change in the prevalence rate for chronic bronchitis using the estimated coefficient from Schwartz's study in a C-R function, and then applied this percentage change to a baseline incidence rate obtained from another source.
Entailed: Following the approach of the report, we guessed that the percentage change in the prevalence rate for chronic bronchitis using the coefficient from the study.
Contradiction: We had no formula for guessing the change in prevalence rate.
Contradiction: She used it every day.
Contradiction: This strange old house has survived many fires in the city, though it is made of wood.
Contradiction: I have an office job that requires me to be there every day. 
Contradiction: A woman has an umbrella.