Anchor: These uncertainties can be reduced by careful consideration of the differences in the health risk or air pollution commodity and the study populations in the underlying economic literature versus the context of benefits conferred by the Clear Skies Act.
Entailed: Careful observation and studying of health risks by air pollution can help ease uncertainties. 
Contradiction: There is no way to reduce these uncertainties at this time.
Contradiction: The man is sleeping
Contradiction: A group of people outside looking at buildings.
Contradiction: A man lays and relaxes in his bed fully clothed.
Contradiction: An oratory was built near the site of Mont-Tombe.