( There ( ( are ( ( four valves ) ( in ( the ( human heart ) ) ) ) ) ; ) )
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (CD four) (NNS valves)) (PP (IN in) (NP (DT the) (JJ human) (NN heart))))) (: ;)))
There are four valves in the human heart;
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (CD four) (NNS valves)) (PP (IN in) (NP (DT the) (NN heart))))) (. .)))