9341
Another ORF , dda . 2 located between modA and dda , shares sequence similarity with sigma70 , and we call it srd .
 dda . 2, modA, dda, sigma70, srd
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 dda . 2, modA, dda, sigma70, srd