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Among the protesters who were arrested were Wellington Chibebe secretary general of the Congress of  Trade Unions  and Raymond Majongwe secretary-general of the Progressive Teachers Union of  Zimbabwe  Matombo said .
 None
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:   
Answer:
 NA: Trade Unions, Zimbabwe