tokens: Interspecies somatic cell hybrids were generated by fusing the mouse T-lymphoma cell line , BW5147 , with normal human T lymphocytes at different stages of differentiation .
folded_tokens: interspecies somatic cell hybrids were generated by fusing the mouse t-lymphoma cell line , bw5147 , with normal human t lymphocytes at different stages of differentiation .
labels: O B-cell_line I-cell_line I-cell_line O O O O O B-cell_line I-cell_line I-cell_line I-cell_line O B-cell_line O O B-cell_type I-cell_type I-cell_type I-cell_type O O O O B-other_name O