1567
a former fbi informant accused of being a double agent has been indicted .
 informant: defendant
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: charge indict 
  Option: prosecutor, adjudicator, defendant, place 
Text: {0} 
Answer:
 informant: defendant