2694
HSBC Holdings PLC's bid for a controlling stake in  Korea Exchange  Bank cleared a hurdle Wednesday when  South Korea  's corporate watchdog said the planned acquisition would not hurt market competition .
 country of headquarters: Korea Exchange, South Korea
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:  Korea Exchange, South Korea 
Answer:
 country of headquarters: Korea Exchange, South Korea