( Plants ( ( ( need ( ( ( water ( -LRB- ( H20 -RRB- ) ) ) and ) ( ( ( carbon dioxide ) ( -LRB- ( CO2 -RRB- ) ) ) ( in ( ( the presence ) ( of ( ( sunlight and ) chlorophyll ) ) ) ) ) ) ) ( to ( produce ( ( glucose ( -LRB- ( ( C6 ( H12 O6 ) ) -RRB- ) ) ) ( for energy ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Plants)) (VP (VBP need) (NP (NP (NN water)) (PRN (-LRB- -LRB-) (NP (NNP H20)) (-RRB- -RRB-)) (CC and) (NP (NP (NP (NN carbon) (NN dioxide)) (PRN (-LRB- -LRB-) (NP (NNP CO2)) (-RRB- -RRB-))) (PP (IN in) (NP (NP (DT the) (NN presence)) (PP (IN of) (NP (NN sunlight) (CC and) (NN chlorophyll))))))) (S (VP (TO to) (VP (VB produce) (NP (NP (NP (NN glucose)) (PRN (-LRB- -LRB-) (NP (NNP C6) (NNP H12) (NNP O6)) (-RRB- -RRB-))) (PP (IN for) (NP (NN energy)))))))) (. .)))
Plants need water (H20) and carbon dioxide (CO2) in the presence of sunlight and chlorophyll to produce glucose (C6 H12 O6) for energy.
(ROOT (S (NP (CD C6) (JJ h12) (NNS o6)) (VP (VBZ is) (NP (NP (DT the) (JJ chemical) (NN formula)) (PP (IN for) (NP (DT a) (NN glucose) (NN molecule))))) (. .)))