( ( ( The heart ) ( in ( this defect ) ) ) ( ( has ( ( ( four chambers ) and ) ( four valves ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN heart)) (PP (IN in) (NP (DT this) (NN defect)))) (VP (VBZ has) (NP (NP (CD four) (NNS chambers)) (CC and) (NP (CD four) (NNS valves)))) (. .)))
The heart in this defect has four chambers and four valves.
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (CD four) (NNS valves)) (PP (IN in) (NP (DT the) (NN heart))))) (. .)))