She progressed to a vaginal delivery.
 The patient had an epidural. 
(ROOT (S (NP (PRP She)) (VP (VBD progressed) (PP (TO to) (NP (DT a) (JJ vaginal) (NN delivery)))) (. .)))
(ROOT (S (NP (DT The) (NN patient)) (VP (VBD had) (NP (DT an) (JJ epidural))) (. .)))
( She ( ( progressed ( to ( a ( vaginal delivery ) ) ) ) . ) )
( ( The patient ) ( ( had ( an epidural ) ) . ) )