2499
A line of stuffed animals , these connected toys combine with a mobile application that was vulnerable due to a number of weak APIs , which did n’t verify who sent messages .
 a mobile application: vulnerable system; these connected toys: vulnerable system; a number of weak APIs: vulnerability
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 mobile application: vulnerable system; these connected toys: vulnerable system; a number of weak APIs: vulnerability