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Interleukin 12 induces tyrosine phosphorylation and activation of STAT4 in human lymphocytes .
 cell type: human lymphocytes; protein: Interleukin 12; protein: STAT4
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: human lymphocytes, Interleukin 12, STAT4 
Answer:
 cell type: human lymphocytes; protein: Interleukin 12; protein: STAT4