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Mayor Carlos Alvarez of Miami-Dade County said that the county 's emergency operations center had opened in case developments in Cuba stirred chaos here , and added that a rumor-control hot line , operating around the clock since Monday night , had received 500 calls .
 nationality: Carlos Alvarez, Cuba
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: Carlos Alvarez, Cuba