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Russia ' s Foreign Minister Igor Ivanov , hardening Moscow ' s opposition to quick military action , indicated Russia may use its veto against the U . S . - backed resolution .
 Russia, Moscow, Russia, its, U . S, military, Russia ' s Foreign Minister, Russia ' s Foreign Minister Igor Ivanov
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 Russia, Moscow, Russia, its, U . S, military, Russia ' s Foreign Minister, Russia ' s Foreign Minister Igor Ivanov