4021
After spending time in rehabilitation , he returned to football in June 2000 when he was signed for Kilmarnock by the then manager Bobby Williamson .
 organization: Kilmarnock; person: Bobby Williamson
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: Kilmarnock, Bobby Williamson 
Answer:
 organization: Kilmarnock; person: Bobby Williamson