15723
Stratified analysis based on the insulin regimen revealed a stronger antidiabetic effect and a high efficacy of sitagliptin when it was added to basal insulin therapy .
 Chemical: sitagliptin
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: sitagliptin 
Answer:
 Chemical: sitagliptin