644
The first sizable relief convoy arrived in Iraq during a sandstorm Wednesday as allied forces struggled to clear the way for more aid shipments , using dolphins to remove mines from waterways and hunting Iraqi fighters around the port of Umm Qasr .
 convoy: vehicle; Iraq: destination; port: destination; forces: agent
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:
 convoy: vehicle; Iraq: destination; port: destination; forces: agent