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Eight - thirty - six a . m . Walter Rodgers reports according to Army sources , Iraqi officials are fleeing Baghdad in droves , using civilian convoys top avoid being targeted by coalition air strikes .
 convoys: vehicle; officials: artifact; Baghdad: origin
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: transport 
  Option: victim, artifact, destination, place, origin, vehicle, agent 
Text: {0} 
Answer:
 convoys: vehicle; officials: artifact; Baghdad: origin