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Prime Minister Nuri Kamal al-Maliki flew to the holy city of Najaf on Wednesday to plead for help from Iraq 's two most influential and enigmatic Shiite clerics , in a sign of the crisis surrounding the Iraqi government as it faces mounting American pressure to quell sectarian violence by reining in Shiite militias .
 location contains: Iraq, Najaf
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: Iraq, Najaf