240531
Walker was subsequently appointed to head the Kosovo Verification Mission , leading some 1400 international and 1500 local staff between October 1998 and June 1999 along with British Major General John Drewienkiewicz , Walker 's military adviser .
 person: Walker; person: John Drewienkiewicz; person: Walker
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Walker, John Drewienkiewicz, Walker 
Answer:
 person: Walker; person: John Drewienkiewicz; person: Walker