19502
In Iran 's case , any attack would almost certainly start at Natanz , where Iran clipped off the International Atomic Energy Agency 's seals a week ago and said it was preparing to reassemble a connected series of 164 centrifuges for purifying uranium .
 location contains: Iran, Natanz; location contains: Iran, Natanz
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: 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:
 location contains: Iran, Natanz; location contains: Iran, Natanz