CARDIOVASCULAR: A regular rate and rhythm.
 Patient has normal cardiac exam
(ROOT (NP (NP (NN CARDIOVASCULAR)) (: :) (NP (NP (DT A) (JJ regular) (NN rate)) (CC and) (NP (NN rhythm))) (. .)))
(ROOT (S (NP (NN Patient)) (VP (VBZ has) (NP (JJ normal) (JJ cardiac) (NN exam)))))
( ( ( CARDIOVASCULAR : ) ( ( ( A ( regular rate ) ) and ) rhythm ) ) . )
( Patient ( has ( normal ( cardiac exam ) ) ) )