Anchor: However, there are persistent and growing concerns regarding recovery of ecosystems and the risks that air pollution pose to human health.
Entailed: There are concerns about the ecosystem recovering.
Contradiction: There are encouraging signs about the ecosystem recovering.
Contradiction: A boy is playing with some dough.
Contradiction: Due to being hamstrung, we never got the job done in Vietnam.
Contradiction: Retrofits can only be done for one unit at each site.
Contradiction: Two dogs are in the grass.