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On 20 December he was taken to the President House in  Rawalpindi  where he took over two positions from  Yahya Khan  one as President and the other as Chief Martial Law Administrator .
 cities of residence: Rawalpindi, Yahya Khan
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:
 cities of residence: Rawalpindi, Yahya Khan