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SEX , politics , Mexico and the enigmas of identity are the themes that have preoccupied -- even , at times , obsessed -- Carlos Fuentes for his entire writing life , and he brings them together once again , in full regalia , in his smashing new novel , '' The Eagle 's Throne . ''
 nationality: Carlos Fuentes, Mexico
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:  Carlos Fuentes, Mexico 
Answer:
 nationality: Carlos Fuentes, Mexico