( ( Coronary ( heart disease ) ) ( ( ( is currently ) ( ( the ( leading cause ) ) ( of ( death ( in ( the ( United States ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Coronary) (NN heart) (NN disease)) (VP (VBZ is) (ADVP (RB currently)) (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 is currently 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))))) (. .)))