( ( For example ) ( ( a ( light bulb ) ) ( ( falls ( into ( the ( categories ( energy converter ) ) ) ) ) . ) ) )
(ROOT (S (PP (IN For) (NP (NN example))) (NP (DT a) (JJ light) (NN bulb)) (VP (VBZ falls) (PP (IN into) (NP (DT the) (NNS categories) (NN energy) (NN converter)))) (. .)))
For example a light bulb falls into the categories energy converter.
(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)))) (. .)))