2757
The antiepileptic drugs , phenobarbitone and carbamazepine are well known to cause cognitive impairment on chronic use .
 Chemical: phenobarbitone; Chemical: carbamazepine; Disease: cognitive impairment
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: phenobarbitone, carbamazepine, cognitive impairment 
Answer:
 Chemical: phenobarbitone; Chemical: carbamazepine; Disease: cognitive impairment