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“ An attempt to hold information and access to the world for ransom is deeply frightening and offensive to any public library , and we will make every effort to keep that world available to our patrons ” .
 ( ransom: ransom,  hold information and access: attack pattern, public library: victim) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: phishing, data breach, ransom, discover vulnerability, patch vulnerability, Arguments type: vulnerable system, capabilities, vulnerability, number of victim, issues addressed, compromised data, damage amount, common vulnerabilities and exposures, victim, patch number, number of data, tool, discoverer, time, purpose, place, payment method, releaser, vulnerable system version, attacker, supported platform, patch, price, vulnerable system owner, trusted entity, attack pattern. 
Text: {0} 
Answer:
 ( ransom: ransom,  hold information and access: attack pattern, public library: victim) 