( ( The ( light energy ) ) ( ( is ( converted ( into ( electrical energy ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ light) (NN energy)) (VP (VBZ is) (VP (VBN converted) (PP (IN into) (NP (JJ electrical) (NN energy))))) (. .)))
The light energy is converted into electrical energy.
(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)))) (. .)))