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Interleukin-7 signaling in human B cell precursor acute lymphoblastic leukemia cells and murine BAF3 cells involves activation of STAT1 and STAT5 mediated via the interleukin-7 receptor alpha chain .
 protein: STAT5; cell line: human B cell precursor acute lymphoblastic leukemia cells; protein: interleukin-7 receptor alpha chain; protein: Interleukin-7; cell line: murine BAF3 cells; protein: STAT1
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: STAT5, human B cell precursor acute lymphoblastic leukemia cells, interleukin-7 receptor alpha chain, Interleukin-7, murine BAF3 cells, STAT1 
Answer:
 protein: STAT5; cell line: human B cell precursor acute lymphoblastic leukemia cells; protein: interleukin-7 receptor alpha chain; protein: Interleukin-7; cell line: murine BAF3 cells; protein: STAT1