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According to a Booz Allen analysis , spear - phishing emails containing weaponized Microsoft Word , Excel , and PowerPoint files , exactly the type of files typically found on laptop computers , were sent to Ukraine electric utility employees as early as May 2014 .
 phishing: were sent to
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:
 phishing: were sent to