2156
METHODS : This double - blind study examined the incidence and severity of postoperative nausea and vomiting and pain in the first 24 h after sevoflurane anaesthesia in 216 adult day surgery patients .
 Disease: postoperative nausea and vomiting; Disease: pain; Chemical: sevoflurane
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: postoperative nausea and vomiting, pain, sevoflurane 
Answer:
 Disease: postoperative nausea and vomiting; Disease: pain; Chemical: sevoflurane