( It ( ( ( can also ) ( be ( converted ( ( ( ( to ( light energy ) ) , ) as ) ( in ( ( the filament ) ( in ( a ( light bulb ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (MD can) (ADVP (RB also)) (VP (VB be) (VP (VBN converted) (PP (PP (TO to) (NP (JJ light) (NN energy))) (, ,) (RB as) (PP (IN in) (NP (NP (DT the) (NN filament)) (PP (IN in) (NP (DT a) (JJ light) (NN bulb))))))))) (. .)))
It can also be converted to light energy, as in the filament in a light bulb.
(ROOT (S (NP (DT A) (JJ light) (NN bulb)) (VP (VBZ converts) (NP (JJ electrical) (NN energy)) (PP (TO to) (NP (JJ light) (CC and) (JJ thermal) (NN energy)))) (. .)))