3191
But it took federal authorities who regulate medical devices four months to acknowledge only one of the alleged defects , and for the company , St. Jude Medical , to patch it .
 medical devices: vulnerable system; federal authorities: discoverer; one of the alleged defects: 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:
 medical devices: vulnerable system; federal authorities: discoverer; one of the alleged defects: vulnerability