Text: The New York Times reports that economists with the Army Corps of Engineers, charged with executing a cost-benefit analysis of un-damming the Snake River in eastern Washington, plan to factor in something they call existence value--the value of the psychic benefit people get from knowing the river is running wild.
Entailment: Economists are undertaking a cost-benefit analysis of un-damming the Snake River.
Contradiction: The New York Times has made no reference to the un-damming of the Snake River.