22561
 In the next few weeks , the board of American University will decide the future of its longtime leader , Benjamin Ladner , who has become the latest college president to be investigated over the nature of his spending . 
 Benjamin Ladner, American University
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:
 Benjamin Ladner, American University