( There ( ( are ( ( many ( other problems ) ) ( in ( ( ( ( the heart ) ( which ( can occur ) ) ) , ) ( such ( as ( narrowing ( of ( ( ( ( ( ( the aorta ) , ) ( valve problems ) ) ( -LRB- ( ( there ( are ( ( four valves ) ( in ( the heart ) ) ) ) ) -RRB- ) ) ) or ) ( ( `` ( ( holes ( in ( the heart ) ) ) '' ) ) ( which ( ( are really ) ( holes ( in ( ( the septum ) ( dividing ( ( ( the ( two atria ) ) or ) ( the ( two ventricles ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (JJ many) (JJ other) (NNS problems)) (PP (IN in) (NP (NP (DT the) (NN heart)) (SBAR (WHNP (WDT which)) (S (VP (MD can) (VP (VB occur))))) (, ,) (PP (JJ such) (IN as) (NP (NP (NN narrowing)) (PP (IN of) (NP (NP (NP (DT the) (NN aorta)) (, ,) (NP (NN valve) (NNS problems)) (PRN (-LRB- -LRB-) (S (NP (EX there)) (VP (VBP are) (NP (NP (CD four) (NNS valves)) (PP (IN in) (NP (DT the) (NN heart)))))) (-RRB- -RRB-))) (CC or) (NP (NP (`` ``) (NP (NNS holes)) (PP (IN in) (NP (DT the) (NN heart))) ('' '')) (SBAR (WHNP (WDT which)) (S (VP (VBP are) (ADVP (RB really)) (NP (NP (NNS holes)) (PP (IN in) (NP (NP (DT the) (NN septum)) (VP (VBG dividing) (NP (NP (DT the) (CD two) (NN atria)) (CC or) (NP (DT the) (CD two) (NNS ventricles))))))))))))))))))) (. .)))
There are many other problems in the heart which can occur, such as narrowing of the aorta, valve problems (there are four valves in the heart) or &quot;holes in the heart&quot; which are really holes in the septum dividing the two atria or the two ventricles.
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (CD four) (NNS valves)) (PP (IN in) (NP (DT the) (NN heart))))) (. .)))