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In one paragraph , the indictment says they demanded ransom from Atlanta in Bitcoin payments in exchange for encryption keys to recover the city ’s compromised data .
 they: attacker; Bitcoin payments: payment method; Atlanta: victim; city: victim
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: ransom 
  Option: victim, attacker, payment method, attack pattern, damage amount, tool, time, price, place 
Text: {0} 
Answer:
 they: attacker; Bitcoin payments: payment method; Atlanta: victim; city: victim