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If Iran moved to restart enrichment at Natanz , it would ratchet up the tension between the Iranian government , which claims its nuclear program is purely peaceful , and the West , particularly the United States , which suspects Iran is pursuing nuclear weapons .
 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