( ( ( Coronary ( Heart ( Disease ( Coronary ( Heart Disease ) ) ) ) ) ( -LRB- ( CHD -RRB- ) ) ) ( ( is ( ( the ( leading cause ) ) ( of ( death ( in ( the ( United States ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Coronary) (NNP Heart) (NNP Disease) (NNP Coronary) (NNP Heart) (NNP Disease)) (PRN (-LRB- -LRB-) (NP (NNP CHD)) (-RRB- -RRB-))) (VP (VBZ is) (NP (NP (DT the) (VBG leading) (NN cause)) (PP (IN of) (NP (NP (NN death)) (PP (IN in) (NP (DT the) (NNP United) (NNPS States))))))) (. .)))
Coronary Heart Disease Coronary Heart Disease (CHD) is the leading cause of death in the United States.
(ROOT (S (NP (NNP Heart) (NN disease)) (VP (VBZ is) (NP (NP (DT the) (VBG leading) (NN cause)) (PP (IN of) (NP (NN death))) (PP (IN in) (NP (DT the) (VBN united) (NNS states))))) (. .)))