4077
Thiopentone pretreatment for propofol injection pain in ambulatory patients .
 Chemical: Thiopentone; Chemical: propofol; Disease: pain
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: Thiopentone, propofol, pain 
Answer:
 Chemical: Thiopentone; Chemical: propofol; Disease: pain