948
That ' 4344 flaw was discovered by eggheads at the UK government 's eavesdropping nerve center , GCHQ .
 ' 4344 flaw: vulnerability; eggheads: discoverer; the UK government: discoverer; eavesdropping nerve center , GCHQ: 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:
 ' 4344 flaw: vulnerability; eggheads: discoverer; the UK government: discoverer; eavesdropping nerve center , GCHQ: discoverer