5695
The sequence upstream of the rhlA promoter contains two inverted repeats which define putative binding sites for the RhlR regulator .
 rhlA promoter, RhlR regulator
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 rhlA promoter, RhlR regulator