( ( Carbon ( monoxide gas ) ) ( ( ( reacts ( with ( ( hydrogen gas ) ( at ( elevated temperatures ) ) ) ) ) ( to ( ( form methanol ) ( according ( to ( this equation ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Carbon) (NN monoxide) (NN gas)) (VP (VBZ reacts) (PP (IN with) (NP (NP (NN hydrogen) (NN gas)) (PP (IN at) (NP (JJ elevated) (NNS temperatures))))) (S (VP (TO to) (VP (VB form) (NP (NN methanol)) (PP (VBG according) (PP (TO to) (NP (DT this) (NN equation)))))))) (. .)))
Carbon monoxide gas reacts with hydrogen gas at elevated temperatures to form methanol according to this equation.
(ROOT (S (NP (NNP Hydrogen)) (VP (VBZ is) (PP (IN in) (NP (NP (NN gas) (NN form)) (PP (IN at) (NP (NN room) (NN temperature)))))) (. .)))