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The concerns about possible ties between the owners of Smartmatic and the Chavez government have been well known to United States foreign-policy officials since before the 2004 recall election in which Mr. Chavez , a strong ally of President Fidel Castro of Cuba , won by an official margin of nearly 20 percent .
 nationality: Fidel Castro, Cuba
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:  Fidel Castro, Cuba 
Answer:
 nationality: Fidel Castro, Cuba