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The unity government in Zimbabwe involving President Robert Mugabe Prime Minister Morgan Tsvangirai and Deputy Prime Minister  Arthur Mutambara  (  MDC-M  ) is currently charting rocky seas following Tsvangirai's partial disengagement from the government on October 16 .
 top members employees: Arthur Mutambara, MDC-M
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "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} 
Answer:
 top members employees: Arthur Mutambara, MDC-M