657
Sequences within and flanking hypersensitive sites 3 and 2 of the beta - globin locus control region required for synergistic versus additive interaction with the epsilon - globin gene promoter .
 GENE: beta - globin; GENE: epsilon - globin gene promoter
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: beta - globin; GENE: epsilon - globin gene promoter