1264
IBM has discovered 17 zero - day vulnerabilities in smart city systems which could debilitate core services .
 17 zero - day vulnerabilities: vulnerability; smart city systems: vulnerable system; IBM: 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:
 17 zero - day vulnerabilities: vulnerability; smart city systems: vulnerable system; IBM: discoverer