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Here, we analyzed large genomic IL-4 regions for enhancer activity and interaction with transcription factors .
 transcription factors, IL-4, genomic IL-4 regions
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 transcription factors, IL-4, genomic IL-4 regions