1638
Mouse osteoblasts were cultured with and without HGC , and incubated in a medium with or without testosterone , pioglitazone or rosiglitazone .
 Chemical: testosterone; Chemical: pioglitazone; Chemical: rosiglitazone
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: testosterone, pioglitazone, rosiglitazone 
Answer:
 Chemical: testosterone; Chemical: pioglitazone; Chemical: rosiglitazone