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Avast revealed the findings of its research experiment into smart devices , including public and private webcam vulnerabilities in Spain , and , specifically , in Barcelona .
 Avast: discoverer; smart devices: vulnerable system; vulnerabilities: vulnerability; findings: vulnerability; public and private webcam: vulnerable system
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:
 Avast: discoverer; smart devices: vulnerable system; vulnerabilities: vulnerability; findings: vulnerability; public and private webcam: vulnerable system