18257
Only antiepileptics prescribed predominantly in epilepsy were studied ( phenobarbital , phenytoin , ethosuximide , valproic acid , vigabatrin , tiagabin , levitiracetam , zonisamide , and lacosamide ) .
 Chemical: phenobarbital; Chemical: phenytoin; Chemical: ethosuximide; Chemical: valproic acid; Chemical: vigabatrin; Chemical: tiagabin; Chemical: levitiracetam; Chemical: zonisamide; Chemical: lacosamide
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: phenobarbital, phenytoin, ethosuximide, valproic acid, vigabatrin, tiagabin, levitiracetam, zonisamide, lacosamide 
Answer:
 Chemical: phenobarbital; Chemical: phenytoin; Chemical: ethosuximide; Chemical: valproic acid; Chemical: vigabatrin; Chemical: tiagabin; Chemical: levitiracetam; Chemical: zonisamide; Chemical: lacosamide