( ( During ( ( the process ) ( of photosynthesis ) ) ) ( they ( ( ( ( ( ( convert ( water ( and ( carbon dioxide ) ) ) ) , ) ( in ( ( the presence ) ( of ( light energy ) ) ) ) ) , ) ( into ( oxygen ( and ( simple sugars ) ) ) ) ) . ) ) )
(ROOT (S (PP (IN During) (NP (NP (DT the) (NN process)) (PP (IN of) (NP (NN photosynthesis))))) (NP (PRP they)) (VP (VBP convert) (NP (NN water) (CC and) (NN carbon) (NN dioxide)) (, ,) (PP (IN in) (NP (NP (DT the) (NN presence)) (PP (IN of) (NP (JJ light) (NN energy))))) (, ,) (PP (IN into) (NP (NN oxygen) (CC and) (JJ simple) (NNS sugars)))) (. .)))
During the process of photosynthesis they convert water and carbon dioxide, in the presence of light energy, into oxygen and simple sugars.
(ROOT (S (S (NP (NNS Photosynthesis)) (VP (VBZ is) (VP (VBN described) (PP (IN by) (NP (DT this) (NN statement)))))) (: :) (S (NP (NP (NN carbon) (NN dioxide)) (CC and) (NP (NN water))) (VP (VBP are) (VP (VBN turned) (PP (IN into) (NP (NN sugar) (CC and) (NN oxygen)))))) (. .)))
Photosynthesis is described by this statement: carbon dioxide and water are turned into sugar and oxygen.