1005
TDO claims the studio initially agreed to pay a ransom of 50 Bitcoin ( $ 67,000 ) by January 31 , and the two parties even signed a contract , albeit TDO signed it using the name " Adolf Hitler . "
 50 Bitcoin: price; $ 67,000: price; January 31: time; the studio: 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:
 50 Bitcoin: price; $ 67,000: price; January 31: time; the studio: victim