26219
Treatment of C57 BL / 6 mice with bleomycin increased fibroblast viability and collagen production and significantly downregulated Nrf2 .
 Chemical: bleomycin
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: bleomycin 
Answer:
 Chemical: bleomycin