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After considering different scenarios , the hospital decided to pay 4 BTC ( equal to $ 45 000 at that time ) for ransomware developers to get private keys needed for files ' recovery .
 ransom: 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: pay