10466
He later became secretary general to the President of the  Republic  from 1954 to 1972 and senior advisor to Presidents Chiang Kai-shek  Yen Chia-kan  Chiang Ching-kuo and Lee Teng-hui .
 employee of: Republic, Yen Chia-kan
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:
 employee of: Republic, Yen Chia-kan