( ( Chemical ( ( light or ) chemiluminescence ) ) ( ( ( differs in ) ( that ( ( chemical energy ) ( is ( ( converted directly ) ( to ( ( light ( without ( ( the involvement ) ( of heat ) ) ) ) ( as ( an ( intermediate ( energy form ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Chemical)) (ADJP (JJ light) (CC or) (JJ chemiluminescence))) (VP (VBZ differs) (PRT (RP in)) (SBAR (IN that) (S (NP (NN chemical) (NN energy)) (VP (VBZ is) (VP (VBN converted) (ADVP (RB directly)) (S (VP (TO to) (VP (VB light) (PP (IN without) (NP (NP (DT the) (NN involvement)) (PP (IN of) (NP (NN heat))))) (PP (IN as) (NP (DT an) (JJ intermediate) (NN energy) (NN form))))))))))) (. .)))
Chemical light or chemiluminescence differs in that chemical energy is converted directly to light without the involvement of heat as an intermediate energy form.
(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)))))) (. .)))