( ( A plant ) ( ( produces ( ( ( ( oxygen and ) carbohydrates ) , ) ( such ( as ( ( sucrose ( , ( glucose ( , ( or starch ) ) ) ) ) ( during photosynthesis ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT A) (NN plant)) (VP (VBZ produces) (NP (NP (NN oxygen) (CC and) (NNS carbohydrates)) (, ,) (PP (JJ such) (IN as) (NP (NP (NN sucrose) (, ,) (NN glucose) (, ,) (CC or) (NN starch)) (PP (IN during) (NP (NN photosynthesis))))))) (. .)))
A plant produces oxygen and carbohydrates, such as sucrose, glucose, or starch during photosynthesis.
(ROOT (S (NP (NNP Glucose)) (VP (VBZ is) (NP (NP (DT a) (NN carbohydrate)) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (VP (VBN produced) (PP (IN by) (NP (NN photosynthesis))))))))) (. .)))