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In 1991 , however , the U . S . Congress banned this after Indonesian troops killed hundreds of civilians in East Timor .
 civilians: victim; troops: agent; East Timor: place
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: die 
  Option: victim, person, place, agent, instrument 
Text: {0} 
Answer:
 civilians: victim; troops: agent; East Timor: place