( ( ( The definition ) ( of photosynthesis ) ) ( ( is ( when ( plants ( ( process ( water ( and ( carbon dioxide ) ) ) ) ( to ( ( produce glucose ) ( by ( ( the process ) ( of photosynthesis ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN definition)) (PP (IN of) (NP (NN photosynthesis)))) (VP (VBZ is) (SBAR (WHADVP (WRB when)) (S (NP (NNS plants)) (VP (VBP process) (NP (NN water) (CC and) (NN carbon) (NN dioxide)) (S (VP (TO to) (VP (VB produce) (NP (NN glucose)) (PP (IN by) (NP (NP (DT the) (NN process)) (PP (IN of) (NP (NN photosynthesis)))))))))))) (. .)))
The definition of photosynthesis    is when plants process water and carbon dioxide to produce glucose by    the process of photosynthesis.
(ROOT (S (NP (NNS Photosynthesis)) (VP (VBZ converts) (NP (NN carbon) (NN dioxide) (CC and) (NN water)) (PP (IN into) (NP (NN glucose)))) (. .)))