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The array of vulnerabilities identified in the systems evaluated included many graded as high or critical risk , leaving the robots highly susceptible to attack .
 ( discover vulnerability: identified in,  the systems: vulnerable system, vulnerabilities: vulnerability) 
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:
 ( discover vulnerability: identified in,  the systems: vulnerable system, vulnerabilities: vulnerability) 