2162
Pain severity and analgesic requirements were unaffected by the omission of fentanyl .
 Disease: Pain; Chemical: fentanyl
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: Pain, fentanyl 
Answer:
 Disease: Pain; Chemical: fentanyl