2550
A month later , a researcher found that an Internet - connected Barbie doll made by Mattel contained vulnerabilities that might allow hackers to intercept real - time conversations .
 a researcher: discoverer; A month later: time; an Internet - connected Barbie doll: vulnerable system; Mattel: vulnerable system owner; vulnerabilities: vulnerability; allow hackers to intercept real - time conversations: capabilities
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:
 a researcher: discoverer; A month later: time; an Internet - connected Barbie doll: vulnerable system; Mattel: vulnerable system owner; vulnerabilities: vulnerability; allow hackers to intercept real - time conversations: capabilities