( Pneumonia ( ( is ( ( a ( serious ( ( infection or ) inflammation ) ) ) ( of ( ( the lungs ) ( that ( causes ( them ( to ( ( ( fill ( with fluid ) ) , ) ( limiting ( the ( ability ( to ( ( ( ( breathe and ) supply ) oxygen ) ( to ( the blood ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Pneumonia)) (VP (VBZ is) (NP (NP (DT a) (JJ serious) (NN infection) (CC or) (NN inflammation)) (PP (IN of) (NP (NP (DT the) (NNS lungs)) (SBAR (WHNP (WDT that)) (S (VP (VBZ causes) (S (NP (PRP them)) (VP (TO to) (VP (VB fill) (PP (IN with) (NP (NN fluid))) (, ,) (S (VP (VBG limiting) (NP (DT the) (NN ability) (S (VP (TO to) (VP (VB breathe) (CC and) (VB supply) (NP (NN oxygen)) (PP (TO to) (NP (DT the) (NN blood))))))))))))))))))) (. .)))
Pneumonia is a serious infection or inflammation of the lungs that causes them to fill with fluid, limiting the ability to breathe and supply oxygen to the blood.
(ROOT (S (NP (DT The) (NN term) (NN pneumonia)) (VP (VBZ is) (NP (NP (DT the) (NN name)) (PP (IN of) (NP (NP (DT the) (NN disease)) (SBAR (WHADVP (WRB where)) (S (NP (NP (DT some)) (PP (IN of) (NP (NP (DT the) (NNS alveoli)) (PP (IN of) (NP (DT the) (NNS lungs)))))) (VP (VBP fill) (PP (IN with) (NP (NN fluid))) (SBAR (IN so) (S (NP (PRP they)) (VP (MD can) (ADVP (RB no) (RB longer)) (VP (VB exchange) (NP (NN gas))))))))))))) (. .)))