Anchor: A number of related measures can be used to measure changes in visibility associated with reduced fine particle concentrations.
Entailed: Many things can be used to measure the changes in how visible fine particles are. 
Contradiction: Nothingcan measure the changes in particle visibility. 
Contradiction: A woman is actually flying off a clifftop.
Contradiction: The people are reading.
Contradiction: Salmon Corp would not meet with me.
Contradiction: New content can be more easily developed once knowledge of existing components is established.