1134
Mary Haffenberg a spokeswoman for the  CME Group  which owns the  Chicago Board of Trade  where these contracts trade said the anomalies might be a temporary result of a lot of shocks to the system including sharp increases in worldwide food demand uncertainty about supplies and surging commodity investments .
 subsidiaries: CME Group, Chicago Board of Trade
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: 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} 
 Entity Pairs:  CME Group, Chicago Board of Trade 
Answer:
 subsidiaries: CME Group, Chicago Board of Trade