5665
We describe an enhancer site in the third intron of tumor necrosis factor alpha ( TNF-alpha ).
 ( protein: tumor necrosis factor alpha, None) , ( protein: TNF-alpha, None) , ( DNA: third intron, 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:
 ( protein: tumor necrosis factor alpha, None) , ( protein: TNF-alpha, None) , ( DNA: third intron, None) 