( ( Prostate cancer ) ( ( is ( ( the ( ( most common ) type ) ) ( of ( cancer ( among ( men ( in ( the ( United States ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Prostate) (NN cancer)) (VP (VBZ is) (NP (NP (DT the) (ADJP (RBS most) (JJ common)) (NN type)) (PP (IN of) (NP (NP (NN cancer)) (PP (IN among) (NP (NP (NNS men)) (PP (IN in) (NP (DT the) (NNP United) (NNPS States))))))))) (. .)))
Prostate cancer is the most common type of cancer among men in the United States.
(ROOT (S (NP (JJ Prostate) (NN cancer)) (VP (VBZ is) (NP (NP (DT the) (ADJP (RBS most) (JJ common)) (NN type)) (PP (IN of) (NP (NP (NN cancer)) (PP (IN in) (NP (JJ adult) (NNS males))))))) (. .)))