1510
central command says it is investigating iraqi allegations that u . s . attacks are to blame for hundreds of civilian s casualties in hillah .
 u . s: attacker; iraqi: place; hillah: place; civilian: target
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:
 u . s: attacker; iraqi: place; hillah: place; civilian: target