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A15 Democrat to Talk to North Korea Gov. Bill Richardson of New Mexico , a United Nations ambassador in the Clinton administration who has long maintained contacts with North Korea , will travel to Pyongyang for talks aimed at persuading the North to give up its nuclear arms programs , Mr. Richardson 's office and the Bush administration said .
 Pyongyang, North Korea; North Korea, Pyongyang; Bill Richardson, New Mexico; North Korea, Pyongyang; North Korea, Pyongyang; Pyongyang, North Korea; North Korea, Pyongyang; North Korea, Pyongyang; North Korea, Pyongyang
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:
 Pyongyang, North Korea; North Korea, Pyongyang; Bill Richardson, New Mexico; North Korea, Pyongyang; North Korea, Pyongyang; Pyongyang, North Korea; North Korea, Pyongyang; North Korea, Pyongyang; North Korea, Pyongyang