4701
We questioned whether one can use the limited expression of lymphoid markers or the limited gene rearrangement to conclude that H-RS cells have a lymphoid origin , because these markers may be aberrant in tumor cells .
 ( cell type: tumor cells, None) , ( cell line: H-RS cells, None) , ( protein: lymphoid markers, 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 type: tumor cells, None) , ( cell line: H-RS cells, None) , ( protein: lymphoid markers, None) 