3763
One type, EA/S , is located in the upstream promoter region , and the other, E(gre) , is located in a tandem repeat with enhancer properties .
 tandem repeat, E(gre), upstream promoter region, EA/S
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:
 tandem repeat, E(gre), upstream promoter region, EA/S