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Late last week , a worm dubbed WannaCry locked up more than 200,000 computers in more than 150 countries , disrupting operations of car factories , hospitals , shops , schools and other institutions .
 ( ransom: disrupting,  Late last week: time, worm: tool, WannaCry: tool, locked up: attack pattern, computers: victim, operations: victim, car factories: victim, hospitals: victim, shops: victim, schools: victim, institutions: 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: disrupting,  Late last week: time, worm: tool, WannaCry: tool, locked up: attack pattern, computers: victim, operations: victim, car factories: victim, hospitals: victim, shops: victim, schools: victim, institutions: victim) 