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Unlike Harak1r1 , this second group is a little bit more greedy and asks for 0.5 Bitcoin , which is around $ 500 , but this has n't stopped companies from paying , with 0wn3d 's Bitcoin wallet showing that at least three victims had paid his ransom demands .
 0.5 Bitcoin: price; second group: attacker; $ 500: price
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:
 0.5 Bitcoin: price; second group: attacker; $ 500: price