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This inducer can act in concert with the HIV-2 tat gene and T-cell activation in enhancing gene expression in human CD4+ lymphocytes .
 cell type: human CD4+ lymphocytes; DNA: HIV-2 tat gene
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 cell type: human CD4+ lymphocytes; DNA: HIV-2 tat gene