54900
Like Mr. Buffett , corporate titans like Sanford I. Weill , the former chief executive of Citigroup , and Henry M. Paulson Jr. , the chief executive of Goldman Sachs who has been nominated to be Treasury secretary , have promised to dispense with their own wealth .
 Citigroup, Sanford I. Weill
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
Answer:
 Citigroup, Sanford I. Weill