Angioplasty was performed and a stent was placed.
 the patient has normal coronary arteries 
(ROOT (S (NP (NNP Angioplasty)) (VP (VBD was) (VP (VP (VBN performed)) (CC and) (SBAR (S (NP (DT a) (NN stent)) (VP (VBD was) (VP (VBN placed))))))) (. .)))
(ROOT (S (NP (DT the) (NN patient)) (VP (VBZ has) (NP (JJ normal) (JJ coronary) (NNS arteries)))))
( Angioplasty ( ( was ( ( performed and ) ( ( a stent ) ( was placed ) ) ) ) . ) )
( ( the patient ) ( has ( normal ( coronary arteries ) ) ) )