He underwent stress testing which was abnormal.
 The patient has cardiac ischemia.
(ROOT (S (NP (PRP He)) (VP (VBD underwent) (NP (NP (NN stress) (NN testing)) (SBAR (WHNP (WDT which)) (S (VP (VBD was) (ADJP (JJ abnormal))))))) (. .)))
(ROOT (S (NP (DT The) (NN patient)) (VP (VBZ has) (NP (JJ cardiac) (NN ischemia))) (. .)))
( He ( ( underwent ( ( stress testing ) ( which ( was abnormal ) ) ) ) . ) )
( ( The patient ) ( ( has ( cardiac ischemia ) ) . ) )