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A total of 27 combinations of different promoters and enhancers were tested by transfection into cultured cells .
 DNA: promoters; DNA: enhancers; cell line: cultured cells
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: promoters; DNA: enhancers; cell line: cultured cells