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Library management refused to pay the $ 35,000 demanded as ransom , and IT staff wiped affected servers and restored them from available backups .
 ransom: refused to pay
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: phishing, data breach, ransom, discover vulnerability, patch vulnerability 
Text: {0} 
Answer:
 ransom: refused to pay