7538
Peiking Suiyuan Railway Operation 1937  China  Taiyuan Pacification Headquarters Yen Hsi shan 1st War Area  Chiang Kai-shek  Sources : See also .
 origin: China, Chiang Kai-shek
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:  China, Chiang Kai-shek 
Answer:
 origin: China, Chiang Kai-shek