1840
A hacker has stolen millions of accounts from Dueling Network , a now - defunct Flash game based on the Yu - Gi - Oh trading card game .
 millions: number of data; accounts: compromised data; Dueling Network: victim; A hacker: 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: data breach 
  Option: victim, attacker, attack pattern, purpose, damage amount, tool, time, place, number of victim, compromised data, number of data 
Text: {0} 
Answer:
 millions: number of data; accounts: compromised data; Dueling Network: victim; A hacker: attacker