500
In - display fingerprint reader technology is widely considered an up - and - coming feature to be used in a number of flagship model phones introduced in 2019 by top OEM phone makers , according to Tencent ’s Xuanwu Lab which is credited for first identifying the flaw earlier this year .
 Tencent ’s Xuanwu Lab: discoverer; the flaw: vulnerability; earlier this year: time
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:
 Tencent ’s Xuanwu Lab: discoverer; the flaw: vulnerability; earlier this year: time