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It 's not such a tall order to plan your own culinary immersion , using Web sites such as www.eGullet.org , where , in a Vietnam forum , food fans lead each other to the country 's most authentic , nontouristy restaurants and dishes -LRB- such as bun cha , a grilled-pork soup seldom found in the United States but , by consensus of many on the site , '' one of Hanoi 's tastiest offerings '' -RRB- .
 Vietnam, Hanoi; Hanoi, Vietnam; Vietnam, Hanoi; Vietnam, Hanoi
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; 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:
 Vietnam, Hanoi; Hanoi, Vietnam; Vietnam, Hanoi; Vietnam, Hanoi