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These results suggest that the alpha-globin G + C-rich 5' flanking region augments alpha-globin promoter activity in a chromatin -dependent manner .
 alpha-globin promoter, alpha-globin G + C-rich 5' flanking region, chromatin
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:
 alpha-globin promoter, alpha-globin G + C-rich 5' flanking region, chromatin