23398
AIM : To compare ' progression to insulin ' for three cohorts on oral antidiabetic medication combinations : metformin / sulphonylurea ( Met / SU ) , metformin / thiazolidinedione ( Met / TZD ) and sulphonylurea / thiazolidinedione ( SU / TZD ) .
 Chemical: metformin; Chemical: sulphonylurea; Chemical: Met; Chemical: metformin; Chemical: thiazolidinedione; Chemical: Met; Chemical: TZD; Chemical: sulphonylurea; Chemical: thiazolidinedione; Chemical: TZD
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: metformin; Chemical: sulphonylurea; Chemical: Met; Chemical: metformin; Chemical: thiazolidinedione; Chemical: Met; Chemical: TZD; Chemical: sulphonylurea; Chemical: thiazolidinedione; Chemical: TZD