2720
1974 : Acting for President Chiang Kai-shek Vice President  Yen Chia-kan  accepts the credentials of Maj. Gen. Ismael D. Lapus as the Philippines ambassador to the  Republic  of China .
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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:
 NA: Yen Chia-kan, Republic