( Light-emitting ( ( ( ( ( ( ( ( ( diodes ( last ( many times ) ) ) ( as long ) ) ( as ( light bulbs ) ) ) , ) ( ( are not ) ( subject ( to breakage ) ) ) ) , ) and ) ( are ( ( much ( more efficient ) ) ( at ( ( converting ( electrical energy ) ) ( to light ) ) ) ) ) ) . ) )
(ROOT (S (NP (NN Light-emitting)) (VP (VP (VBZ diodes) (NP (JJ last) (JJ many) (NNS times)) (ADVP (RB as) (RB long)) (PP (IN as) (NP (JJ light) (NNS bulbs)))) (, ,) (VP (VBP are) (RB not) (ADJP (JJ subject) (PP (TO to) (NP (NN breakage))))) (, ,) (CC and) (VP (VBP are) (ADJP (ADJP (RB much) (RBR more) (JJ efficient)) (PP (IN at) (S (VP (VBG converting) (NP (JJ electrical) (NN energy)) (PP (TO to) (NP (NN light))))))))) (. .)))
Light-emitting diodes last many times as long as light bulbs, are not subject to breakage, and are much more efficient at converting electrical energy to light.
(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)))) (. .)))