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In a news report released in April 2016 , the FBI expressed its direct concerns over the unchallenged growth of ransomware attacks and urged any victims to not give in to the demand for ransom unless all other options are exhausted .
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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:
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