( ( This ( nitrogen gas ) ) ( ( has ( ( no ( ill affects ) ) ( to ( the atmosphere ) ) ) ) . ) )
(ROOT (S (NP (DT This) (NN nitrogen) (NN gas)) (VP (VBZ has) (NP (NP (DT no) (JJ ill) (NN affects)) (PP (TO to) (NP (DT the) (NN atmosphere))))) (. .)))
This nitrogen gas has no ill affects to the atmosphere.
(ROOT (S (NP (NN Nitrogen) (NN gas)) (VP (VBZ comprises) (NP (NP (QP (RB about) (NNS three-fourths))) (PP (IN of) (NP (NP (NN earth) (POS 's)) (NN atmosphere))))) (. .)))