9886
Both IL-2 and IL-7 induced substantial amounts of STAT5A /STAT5B heterodimerization .
 protein: IL-2; protein: STAT5A; protein: /STAT5B; protein: IL-7
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: IL-2, STAT5A, /STAT5B, IL-7 
Answer:
 protein: IL-2; protein: STAT5A; protein: /STAT5B; protein: IL-7