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As the Mexican writer Gabriel Zaid pointed out last week in the newspaper Reforma , Mr. Lopez Obrador , a former member of the Institutional Revolutionary Party , which ruled Mexico from 1929 to 2000 , wants to return to the political structure of the old days .
 nationality: Gabriel Zaid, Mexico
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "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} 
Answer:
 nationality: Gabriel Zaid, Mexico