8661
A few 47.10 cells (3-5%) do not express lineage specific markers; they differentiate spontaneously to lineage-positive cells after replating on 2M-1 cells .
 ( cell line: lineage-positive cells, None) , ( cell line: 2M-1 cells, None) , ( cell line: 47.10 cells, 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: lineage-positive cells, None) , ( cell line: 2M-1 cells, None) , ( cell line: 47.10 cells, None) 