450
 The Carter Center 's office was able to send in its biggest gun , short of a visit from Mr. Carter himself : Gen. Yakubu Gowon , who ruled Nigeria from 1966 to 1975 . 
 Yakubu Gowon, Nigeria
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:
 Yakubu Gowon, Nigeria