One major reason is that the plants in the forest turn carbon dioxide into clean air, which helps us fight pollution.
(One major reason; is; that the plants in the forest turn carbon dioxide into clean air) (clean air; helps; us fight pollution) Context(clean air helps,List([75, 97))):(us; fight; pollution)
clean air helps,List([75, 97))
One major reason clean air us
is helps fight
that the plants in the forest turn carbon dioxide into clean air
us fight pollution
pollution