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Further, we observe that TAR-deleted mutants of HIV-1 demonstrate normal late gene expression in glial cells as evidenced by syncytia formation and production of viral p24 antigen .
 cell type: glial cells; protein: viral p24 antigen; DNA: TAR-deleted mutants
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: glial cells; protein: viral p24 antigen; DNA: TAR-deleted mutants