( ( Fluorescent bulbs ) ( ( ( ( ( are ( ( ( several times ) ( more efficient ) ) ( than ( incandescent bulbs ) ) ) ) ( in ( ( converting ( electrical energy ) ) ( to ( visible light ) ) ) ) ) and ) ( will ( last ( longer ( than ( incandescent bulbs ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Fluorescent) (NNS bulbs)) (VP (VP (VBP are) (ADJP (ADJP (NP (JJ several) (NNS times)) (RBR more) (JJ efficient)) (PP (IN than) (NP (JJ incandescent) (NNS bulbs)))) (PP (IN in) (S (VP (VBG converting) (NP (JJ electrical) (NN energy)) (PP (TO to) (NP (JJ visible) (NN light))))))) (CC and) (VP (MD will) (VP (VB last) (ADVP (RB longer) (PP (IN than) (NP (JJ incandescent) (NNS bulbs))))))) (. .)))
Fluorescent bulbs are several times more efficient than incandescent bulbs in converting electrical energy to visible light and will last longer than incandescent bulbs.
(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)))) (. .)))