2691
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 .
 ( cell line: mouse T-lymphoma cell line, None) , ( cell line: somatic cell hybrids, None) , ( cell type: normal human T lymphocytes, None) , ( cell line: BW5147, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( cell line: mouse T-lymphoma cell line, None) , ( cell line: somatic cell hybrids, None) , ( cell type: normal human T lymphocytes, None) , ( cell line: BW5147, None) 