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Oct2 expression was unable to stimulate a multimerized octamer enhancer element in HeLa cells , however.
 DNA: multimerized octamer enhancer element; cell line: HeLa cells; protein: Oct2
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 DNA: multimerized octamer enhancer element; cell line: HeLa cells; protein: Oct2