8687
Moody's which estimates  Dubai  's overall debt at 100 billion dollars only has ratings on DP World and Jebel Ali Free Zone among  Dubai World  's operations .
 Dubai, Dubai World
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 Dubai, Dubai World