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Career After demonstrating his ability riding Redhead , winner of the Liverpool Summer Cup , for trainer George Lambton , Lambton recommended Weston to Lord Derby to be his retained jockey .
 person: George Lambton; person: Lambton; person: Lord Derby
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: George Lambton, Lambton, Lord Derby 
Answer:
 person: George Lambton; person: Lambton; person: Lord Derby