24903
Aëtius moved to oppose Attila , gathering troops from among the Franks , the Burgundians , and the Celts .
 Aëtius, Attila
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Aëtius, Attila