( No ( . ( Oxygen ( ( is ( ( ( a ( waste gas ) ) ( ( produced ( by plants ) ) . ) ) ( They ( ( ( `` ( ( inhale '' ) ( carbon dioxide ) ) ) and ) ( `` ( ( exhale '' ) oxygen ) ) ) ) ) ) . ) ) ) )
(ROOT (S (INTJ (UH No)) (. .) (NP (NNP Oxygen)) (VP (VBZ is) (NP (NP (DT a) (NN waste) (NN gas)) (VP (VBN produced) (PP (IN by) (NP (NNS plants))) (. .)) (SBAR (S (NP (PRP They)) (VP (VP (`` ``) (VB inhale) ('' '') (NP (NN carbon) (NN dioxide))) (CC and) (VP (`` ``) (VB exhale) ('' '') (NP (NN oxygen)))))))) (. .)))
No. Oxygen is a waste gas produced by plants. They "inhale" carbon dioxide and "exhale" oxygen.
(ROOT (S (NP (NN Oxygen) (NN gas)) (VP (VBZ is) (VP (VBN given) (PRT (RP off)) (PP (IN by) (NP (NNS plants))))) (. .)))