( ( During photosynthesis ) ( , ( plants ( ( use ( ( the energy ) ( of ( the ( sun ( to ( drive ( ( a reaction ) ( that ( ( converts ( carbon ( ( dioxide and ) water ) ) ) ( to ( ( sugar and ) oxygen ) ) ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN During) (NP (NN photosynthesis))) (, ,) (NP (NNS plants)) (VP (VBP use) (NP (NP (DT the) (NN energy)) (PP (IN of) (NP (DT the) (NN sun) (S (VP (TO to) (VP (VB drive) (NP (NP (DT a) (NN reaction)) (SBAR (WHNP (WDT that)) (S (VP (VBZ converts) (NP (NN carbon) (NN dioxide) (CC and) (NN water)) (PP (TO to) (NP (NN sugar) (CC and) (NN oxygen)))))))))))))) (. .)))
During photosynthesis, plants use the energy of the sun to drive a reaction that converts carbon dioxide and water to sugar and oxygen .
(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.