Anchor: The difference in REMSAD-modeled PM concentrations for these scenarios represents the expected change in PM due to the emission controls under the Clear Skies Act.
Entailed: there is huge difference between REMSAD-modeled PM concentrations and others.
Contradiction: It is not important o put our focus to emission control happing across industry. 
Contradiction: A man has put together the toy.
Contradiction: A man is preparing food.
Contradiction: A group of men racing go-karts
Contradiction: A woman at work.