10872
It is thought by some historians that Finance Minister and  MCA  President  Tan Siew Sin  's appeal to the Chinese to avoid challenging the Malay special rights and risk merger with Indonesia helped the MCA retain its status as the undisputed leader of the Chinese in the Malayan peninsula .
 employee of: MCA, Tan Siew Sin
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:  MCA, Tan Siew Sin 
Answer:
 employee of: MCA, Tan Siew Sin