20831
The cytotoxicity assay was carried out in macrophages J774G . 8 by sulforhodamine B colorimetric assay .
 Chemical: sulforhodamine B
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: sulforhodamine B