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Taken together, we report that IL-2 induces tyrosine phosphorylation and subsequent nuclear translocation of stat3 and an as yet undefined 84-kDa protein in antigen-specific human T cell lines .
 protein: 84-kDa protein; protein: IL-2; cell line: antigen-specific human T cell lines; protein: stat3
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: 84-kDa protein, IL-2, antigen-specific human T cell lines, stat3 
Answer:
 protein: 84-kDa protein; protein: IL-2; cell line: antigen-specific human T cell lines; protein: stat3