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Putin concluded his two days of talks in Saint Petersburg with Jacques Chirac of France and German Chancellor Gerhard Schroeder on Saturday still urging for a central role for the United Nations in a post - war revival of Iraq .
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Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: attack 
  Option: victim, attacker, place, target, instrument 
Text: {0} 
Answer:
 None