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Colorado security officials are still investigating the CDOT ransomware attack that took 2,000 employee computers offline for more than a week .
 a week: time; took 2,000 employee computers offline: attack pattern; CDOT: 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:
 a week: time; took 2,000 employee computers offline: attack pattern; CDOT: victim