( ( ( ( ( ( ( Pneumonia , ) ( lung abscess ) ) , ) emphysema ) and ) ( pulmonary tuberculosis ) ) ( ( ( are all ) ( common ( in alcoholics ) ) ) . ) )
(ROOT (S (NP (NP (NNP Pneumonia)) (, ,) (NP (NN lung) (NNS abscess)) (, ,) (NP (NN emphysema)) (CC and) (NP (NNP pulmonary) (NNP tuberculosis))) (VP (VBP are) (RB all) (ADJP (JJ common) (PP (IN in) (NP (NNS alcoholics))))) (. .)))
Pneumonia, lung abscess, emphysema and pulmonary tuberculosis are all common in alcoholics.
(ROOT (S (NP (NNP Pneumonia) (CC and) (NN emphysema) (NNS illnesses)) (VP (VBP are) (VP (VBN caused) (PP (IN by) (NP (NN damage))) (PP (TO to) (NP (NP (DT the) (NNS alveoli)) (PP (IN of) (NP (DT the) (NNS lungs))))))) (. .)))