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Valproate ( Val ) , a major antiepileptic drug , was also tested for comparison .
 Chemical: Valproate; Chemical: Val
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: Valproate, Val 
Answer:
 Chemical: Valproate; Chemical: Val