3747
The Russian firm is said to have extensive technical experience in security vulnerabilities of supervisory control and data acquisition systems that are used to remotely control critical infrastructure .
 security vulnerabilities: vulnerability; supervisory control and data acquisition systems: vulnerable system; remotely control critical infrastructure: capabilities; The Russian firm: 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:
 security vulnerabilities: vulnerability; supervisory control and data acquisition systems: vulnerable system; remotely control critical infrastructure: capabilities; The Russian firm: discoverer