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Belgian  Prime Minister   Yves Leterme  and former US secretary of state Colin Powell to attend .
 Prime Minister, Yves Leterme
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:
 Prime Minister, Yves Leterme