( ( During photosynthesis ) ( , ( ( light energy ) ( ( is ( converted ( to ( chemical energy ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN During) (NP (NN photosynthesis))) (, ,) (NP (JJ light) (NN energy)) (VP (VBZ is) (VP (VBN converted) (PP (TO to) (NP (NN chemical) (NN energy))))) (. .)))
During photosynthesis,light energy is converted to 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)))))) (. .)))