1643
there ' s a new poll out this morning , abc news washington post poll that suggests that most americans would support u . s . military action against iran in order to keep the country from acquiring nuclear weapons .
 military: attacker
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:
 military: attacker