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On 19 January 2011 pianist Lang Lang played the theme song of this movie at a White House state dinner for Chinese  President   Hu Jintao  .
 President, Hu Jintao
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:
 President, Hu Jintao