( ( ( The process ) ( of photosynthesis ) ) ( ( requires ( ( ( ( ( carbon dioxide ) , ) ( ( ( ( water and ) sunlight ) , ) ( which produces ) ) ) , ) ( oxygen ( , ( ( water and ) glucose ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN process)) (PP (IN of) (NP (NN photosynthesis)))) (VP (VBZ requires) (NP (NP (NN carbon) (NN dioxide)) (, ,) (NP (NP (NN water) (CC and) (NN sunlight)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ produces))))) (, ,) (NP (NN oxygen) (, ,) (NN water) (CC and) (NN glucose)))) (. .)))
The process of    photosynthesis requires carbon dioxide, water and sunlight, which    produces, oxygen, water and glucose.
(ROOT (S (NP (NNS Photosynthesis)) (VP (VBZ converts) (NP (NN carbon) (NN dioxide) (CC and) (NN water)) (PP (IN into) (NP (NN glucose)))) (. .)))