( ( ( Most light ) energy ) ( ( is ( converted ( into heat ) ) ) . ) )
(ROOT (S (NP (ADJP (RBS Most) (JJ light)) (NN energy)) (VP (VBZ is) (VP (VBN converted) (PP (IN into) (NP (NN heat))))) (. .)))
Most light energy is converted into heat.
(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)))))) (. .)))