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However , a Del Rio City Hall spokeswoman did reveal that the malware is somewhat unusual , as the ransom note posted to roughly 30 - 45 PCs contained a phone number to be used to pay the blackmail fee .
 ransom note: tool; malware: tool; PCs: victim; Del Rio City Hall: attacker
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:
 ransom note: tool; malware: tool; PCs: victim; Del Rio City Hall: attacker