( ( In photosynthesis ) ( , ( leaves ( ( use ( chlorophyll ( to ( ( convert ( ( ( ( water , ) ( carbon dioxide ) ) and ) ( light energy ) ) ) ( into ( ( sugar and ) oxygen ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (NN photosynthesis))) (, ,) (NP (NNS leaves)) (VP (VBP use) (ADJP (JJ chlorophyll) (S (VP (TO to) (VP (VB convert) (NP (NP (NN water)) (, ,) (NP (NN carbon) (NN dioxide)) (CC and) (NP (JJ light) (NN energy))) (PP (IN into) (NP (NN sugar) (CC and) (NN oxygen)))))))) (. .)))
In photosynthesis, leaves use chlorophyll to convert water, carbon dioxide and light energy into 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.