1858
" In a separate incident , a laptop was stolen from Queen Mary Hospital last year , containing the personal details of nearly 4000 patients
 ( data breach: was stolen,  patients: victim, 4000: number of victim, the personal details: compromised data, last year: time, Queen Mary Hospital: victim, a laptop: 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:
 ( data breach: was stolen,  patients: victim, 4000: number of victim, the personal details: compromised data, last year: time, Queen Mary Hospital: victim, a laptop: victim) 