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The Baltimore hack comes amid increasing hacking of municipal systems across the country , and follows one in Atlanta last week that paralyzed that city ’s online bill - payment system , with hackers demanding a $ 51,000 payment in bitcoin to unlock it .
 $ 51,000: price; paralyzed that city ’s online bill - payment system: attack pattern; last week: time; Atlanta: place
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:
 $ 51,000: price; paralyzed that city ’s online bill - payment system: attack pattern; last week: time; Atlanta: place