( ( ( ( ( Smoking ( and ( lung ( disease ( Chronic bronchitis ) ) ) ) ) ( -LRB- ( ( inflammation ( of ( air tubes ) ) ) -RRB- ) ) ) and ) ( emphysema ( -LRB- ( ( damage ( to ( lung tissue ) ) ) -RRB- ) ) ) ) ( ( ( are both ) ( caused ( by ( cigarette smoking ) ) ) ) . ) )
(ROOT (S (NP (NP (NP (NN Smoking) (CC and) (NN lung) (NN disease) (NNP Chronic) (NNP bronchitis)) (PRN (-LRB- -LRB-) (NP (NP (NN inflammation)) (PP (IN of) (NP (NN air) (NNS tubes)))) (-RRB- -RRB-))) (CC and) (NP (NP (NN emphysema)) (PRN (-LRB- -LRB-) (NP (NP (NN damage)) (PP (TO to) (NP (NN lung) (NN tissue)))) (-RRB- -RRB-)))) (VP (VBP are) (ADVP (DT both)) (VP (VBN caused) (PP (IN by) (NP (NN cigarette) (NN smoking))))) (. .)))
Smoking and lung disease Chronic bronchitis (inflammation of air tubes) and emphysema (damage to lung tissue) are both caused by cigarette smoking.
(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))))))) (. .)))