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Bob , one of the reasons I think so many Americans are worried about this war and so many people around the world don ' t want to go is there have been a lot of problems with credibility from this administration .
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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:
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