22544
Ketoconazole reduced midazolam oral clearance by 92 . 8 % .
 Chemical: Ketoconazole; Chemical: midazolam
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: Ketoconazole, midazolam 
Answer:
 Chemical: Ketoconazole; Chemical: midazolam