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Experts at the University Alliance Ruhr recently announced vulnerabilities in laser printers from manufacturers including Dell , HP , Lexmark , Samsung , Brother , and Konica .
 Experts: discoverer; vulnerabilities: vulnerability; laser printers: vulnerable system; manufacturers: vulnerable system owner; Dell: vulnerable system owner; HP: vulnerable system owner; Lexmark: vulnerable system owner; Samsung: vulnerable system owner; Brother: vulnerable system owner; Konica: vulnerable system owner; the University Alliance Ruhr: discoverer
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:
 Experts: discoverer; vulnerabilities: vulnerability; laser printers: vulnerable system; manufacturers: vulnerable system owner; Dell: vulnerable system owner; HP: vulnerable system owner; Lexmark: vulnerable system owner; Samsung: vulnerable system owner; Brother: vulnerable system owner; Konica: vulnerable system owner; the University Alliance Ruhr: discoverer