2710
At daybreak , U . S . troops pushed through the outskirts of Karbala on the road to Baghdad , capturing a key bridge on the Euphrates River .
 troops: artifact; Baghdad: destination; outskirts: 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:
 troops: artifact; Baghdad: destination; outskirts: origin