( ( During photosynthesis ) ( ( the ( light energy ) ) ( ( is ( converted ( into ( chemical energy ) ) ) ) . ) ) )
(ROOT (S (PP (IN During) (NP (NN photosynthesis))) (NP (DT the) (JJ light) (NN energy)) (VP (VBZ is) (VP (VBN converted) (PP (IN into) (NP (NN chemical) (NN energy))))) (. .)))
During photosynthesis the light energy is converted into chemical energy.
(ROOT (S (S (NP (DT The) (NN energy)) (VP (VBZ transformations) (SBAR (IN that) (S (VP (VBP occur) (SBAR (WHADVP (WRB when)) (S (NP (DT a) (NN candle) (NNS burns)) (VP (VBZ is) (VP (VBN described) (PP (IN by))))))))))) (: :) (S (NP (NP (NN chemical) (NN energy)) (PP (IN from) (NP (DT the) (NN wax)))) (VP (VBZ is) (VP (VBN converted) (PP (IN into) (NP (NN light) (CC and) (NN heat) (NN energy)))))) (. .)))