tokens: Characterization of the human immunodeficiency virus type 1 enhancer -binding proteins from the human T-cell line Jurkat .
folded_tokens: characterization of the human immunodeficiency virus type 1 enhancer -binding proteins from the human t-cell line jurkat .
labels: O O O B-virus I-virus I-virus O O O O O O O B-cell_line I-cell_line I-cell_line B-cell_line O