20150
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 .
 nationality: Yakubu Gowon, Nigeria
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: 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} 
 Entity Pairs:  Yakubu Gowon, Nigeria 
Answer:
 nationality: Yakubu Gowon, Nigeria