9992
China  Shenhua the nation's largest coal producer rose 1.47 percent to 37.99 yuan per share while  Huadian Power International  Corp. a leading power generation firm advanced 2.12 percent to 5.77 yuan per share .
 China, Huadian Power International
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; 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:
 China, Huadian Power International