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February 5th 2016 , Hollywood Presbyterian Medical Center paid a $ 17,000 ransom in bitcoin to a hacker who seized control of the hospital ’s computer systems and would give back access only when the money was paid .
 ( ransom: paid,  February 5th 2016: time, Hollywood Presbyterian Medical Center: victim, $ 17,000: price, in bitcoin: payment method, hacker: attacker, seized control: attack pattern, computer systems: victim, hospital: 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: paid,  February 5th 2016: time, Hollywood Presbyterian Medical Center: victim, $ 17,000: price, in bitcoin: payment method, hacker: attacker, seized control: attack pattern, computer systems: victim, hospital: victim) 