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" If something like this were to be found on Google or Facebook , it would be a high - severity issue , " said Grossman , who 's the Chief of Security Strategy at security firm SentinelOne .
 Google: vulnerable system; Facebook: vulnerable system; a high - severity issue: vulnerability; it: vulnerability
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: discover vulnerability 
  Option: vulnerable system owner, vulnerability, capabilities, time, vulnerable system version, discoverer, common vulnerabilities and exposures, supported platform, vulnerable system 
Text: {0} 
Answer:
 Google: vulnerable system; Facebook: vulnerable system; a high - severity issue: vulnerability; it: vulnerability