8667
 Iran , however , has proposed that it move step by step through the stages of uranium enrichment , including installing 3,000 centrifuges in its enrichment plant at Natanz . 
 Iran, Natanz
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; 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:
 Iran, Natanz