554
A professional bug - hunter and pentester , Moskowsky said he has been doing security research since he was in school , and for the past several years , he has made a career out of finding and reporting flaws .
 flaws: vulnerability; he: discoverer; Moskowsky: 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:
 flaws: vulnerability; he: discoverer; Moskowsky: discoverer