844
Reversible valproic acid-induced dementia was documented in a 21-year-old man with epilepsy who had a 3-year history of insidious progressive decline in global cognitive abilities documented by serial neuropsychological studies.
 a 21-year-old man with epilepsy who had a 3-year history of insidious progressive decline in global cognitive abilities: Subject; 21-year-old: Subject.Age; man: Subject.Gender; insidious progressive decline in global cognitive abilities: Subject.Disorder; Reversible: Effect; dementia: Effect; valproic acid: Treatment; valproic acid: Treatment.Drug; epilepsy: Treatment.Disorder
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: adverse event 
  Option: Treatment.Freq, Subject.Population, Combination.Drug, Subject.Gender, Treatment.Duration, Subject, Effect, Treatment, Treatment.Disorder, Subject.Disorder, Treatment.Route, Subject.Race, Treatment.Time_elapsed, Treatment.Dosage, Subject.Age, Treatment.Drug 
Text: {0} 
Answer:
 a 21-year-old man with epilepsy who had a 3-year history of insidious progressive decline in global cognitive abilities: Subject; 21-year-old: Subject.Age; man: Subject.Gender; insidious progressive decline in global cognitive abilities: Subject.Disorder; Reversible: Effect; dementia: Effect; valproic acid: Treatment; valproic acid: Treatment.Drug; epilepsy: Treatment.Disorder