( ( Plant photosynthesis ) ( ( ( ( breaks ( ( the ( carbon dioxide ) ) ( in two ) ) ) , ) ( ( ( ( keeping ( the ( carbon ( to ( form ( ( the carbohydrates ) ( that ( ( make up ) ( the plant ) ) ) ) ) ) ) ) ) , ) and ) ( ( putting ( the oxygen ) ) ( into ( the air ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Plant) (NNP photosynthesis)) (VP (VBZ breaks) (NP (NP (DT the) (NN carbon) (NN dioxide)) (PP (IN in) (NP (CD two)))) (, ,) (S (VP (VP (VBG keeping) (NP (DT the) (NN carbon) (S (VP (TO to) (VP (VB form) (NP (NP (DT the) (NNS carbohydrates)) (SBAR (WHNP (WDT that)) (S (VP (VBP make) (PRT (RP up)) (NP (DT the) (NN plant))))))))))) (, ,) (CC and) (VP (VBG putting) (NP (DT the) (NN oxygen)) (PP (IN into) (NP (DT the) (NN air))))))) (. .)))
Plant photosynthesis breaks the carbon dioxide in two, keeping the carbon to form the carbohydrates that make up the plant, and putting the oxygen into the air.
(ROOT (S (NP (NNP Oxygen)) (VP (VBZ is) (VP (VBN made) (PP (IN by) (NP (NP (NNS trees)) (CC and) (NP (JJ other) (NNS plants)))) (PP (IN during) (NP (NN photosynthesis))))) (. .)))