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Hāwera High School staff in South Taranaki switched on their computers on Monday to discover a message demanding payment for the return of encrypted data on a server containing students ' work and teaching resources , principal Rachel Williams said .
 a server: victim; Monday: time; their computers: victim; South Taranaki: place; Hāwera High School staff: 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 server: victim; Monday: time; their computers: victim; South Taranaki: place; Hāwera High School staff: victim