13068
It is unknown which Stat3 isoform (s) is activated in response to interleukin (IL)-2 and IL-15 .
 protein: interleukin (IL)-2; protein: Stat3; protein: IL-15; protein: Stat3 isoform
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: interleukin (IL)-2, Stat3, IL-15, Stat3 isoform 
Answer:
 protein: interleukin (IL)-2; protein: Stat3; protein: IL-15; protein: Stat3 isoform