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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 .
 Chemical: valproic acid; Disease: dementia; Disease: epilepsy
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: valproic acid; Disease: dementia; Disease: epilepsy