Mild stress incontinence.
 History of vaginal childbirth
(ROOT (NP (NP (JJ Mild) (NN stress) (NN incontinence)) (. .)))
(ROOT (NP (NP (NN History)) (PP (IN of) (NP (JJ vaginal) (NN childbirth)))))
( ( Mild ( stress incontinence ) ) . )
( History ( of ( vaginal childbirth ) ) )