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A day after a Navi Mumbai hospital and hotel became targets of a ransomware attack , cyber fraudsters encrypted data belonging to a Dadar - based chartered accountant and demanded money to remove the block on the data on Monday .
 Monday: time; cyber fraudsters: attacker; Dadar - based chartered accountant: victim; encrypted data: attack pattern
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:
 Monday: time; cyber fraudsters: attacker; Dadar - based chartered accountant: victim; encrypted data: attack pattern