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 Despite all the propaganda that Iran is trying to buy time , '' he said , Tehran urged the six nations making the offer '' to return to the negotiating table as soon as possible to discuss all the issues in the package , including long-term nuclear cooperation , economic and technical cooperation , and also security cooperation in the region , so that we can reach a peaceful understanding in all three areas . '' 
 country capital: Iran, Tehran
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: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
Answer:
 country capital: Iran, Tehran