5707
 But N. Gregory Mankiw , who succeeded Mr. Hubbard and recently returned to Harvard University , had a more distant relationship with Mr. Bush . 
 N. Gregory Mankiw, Harvard 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:
 N. Gregory Mankiw, Harvard University