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That ’s just what happened to guests at a luxury hotel in Austria when they were left stranded outside of their rooms after a ransomware attack that overrode electronic key systems .
 overrode electronic key systems: attack pattern; a luxury hotel: attacker; guests: victim; Austria: place; they: 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:
 overrode electronic key systems: attack pattern; a luxury hotel: attacker; guests: victim; Austria: place; they: victim