315
The decryption key became inaccessible shortly after the attack , and the city did n’t pay the ransom , prosecutors said .
 ransom: pay the ransom
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: pay the ransom