( ( Keep ( ( ( ( film out ) ( of ( ( an atmosphere ) ( containing ( chemical fumes ) ) ) ) ) , ) ( such ( as ( ( ( ( ( ( ( ( ( ( ( ( hydrogen sulfide ) , ) ( hydrogen peroxide ) ) , ) ( sulfur dioxide ) ) , ) ammonia ) , ) ( coal gas ) ) , ) and ) ( automobile engine ) ) ) ) ) ) ( exhaust . ) )
(ROOT (S (S (VP (VB Keep) (NP (NP (NN film) (RP out)) (PP (IN of) (NP (NP (DT an) (NN atmosphere)) (VP (VBG containing) (NP (NN chemical) (NNS fumes))))) (, ,) (PP (JJ such) (IN as) (NP (NP (NN hydrogen) (NN sulfide)) (, ,) (NP (NN hydrogen) (NN peroxide)) (, ,) (NP (NN sulfur) (NN dioxide)) (, ,) (NP (NN ammonia)) (, ,) (NP (NN coal) (NN gas)) (, ,) (CC and) (NP (NN automobile) (NN engine))))))) (VP (VBP exhaust)) (. .)))
Keep film out of an atmosphere containing chemical fumes, such as hydrogen sulfide, hydrogen peroxide, sulfur dioxide, ammonia, coal gas, and automobile engine exhaust.
(ROOT (S (NP (NNP Hydrogen) (NNP sulfide)) (VP (VBZ is) (NP (NP (DT a) (ADJP (JJ noxious) (CC and) (JJ toxic)) (NN gas)) (VP (VBN produced) (PP (IN from) (S (VP (VBG decaying) (NP (JJ organic) (NN matter)))))) (SBAR (WHNP (WDT that)) (S (VP (VBZ contains) (NP (NN sulfur))))))) (. .)))