3120
Do you think , um -- the -- when the Republicans are campaigning -- they were saying that well , another attack on the U . S . is -- imminent , that it probably -- probably going to happen -- and -- um -- and -- they even went so far to say that if -- it ' s really difficult to prevent something like this and of course they ' re doing the best they can and -- I think Kerry would do the best he could .
 None
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