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Must Read : Hacking Facebook Account by Knowing Account Phone Number Reportedly , De Ceukelaire proved his claim by obtaining the cell number of Jan Jambon , the Interior Minister for Belgium , through his Facebook profile .
 obtaining the cell number: capabilities; De Ceukelaire: 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:
 obtaining the cell number: capabilities; De Ceukelaire: discoverer