15843
 The report said the agency had taken samples earlier this month at Natanz that '' tend to confirm '' the enrichment level of 3.6 percent declared by Iran the level needed to make electricity . 
 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