9916
 The talk of his early retirement , coming days after the president of Citigroup , Robert B. Willumstad , announced his departure , also raised questions about the management of the company . '' 
 Robert B. Willumstad, Citigroup
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
Answer:
 Robert B. Willumstad, Citigroup