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Greenfield , Indiana - based Hancock Health paid hackers 4 bitcoin or about $ 47,000 to unlock its network on Saturday , after the health system fell victim to a ransomware attack on Thursday night .
 Thursday night: time; the health system: 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:
 Thursday night: time; the health system: victim