Anchor: Estimating benefits for visibility is a more difficult and less precise exercise than estimating health benefits because the endpoints are not directly or indirectly valued in markets.
Entailed: Visibility is more difficult to value than health benefits.
Contradiction: There is no way to value health benefits, but visibility is valued directly in many markets.
Contradiction: Cultural barriers are no problem at all.
Contradiction: Men are running a race.
Contradiction: There is a man listening to someone sing
Contradiction: They said that we should stay inside.