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Because he held lands from the Crown by knight service , his son became a royal ward of the Queen and was placed in the household of Sir " William Cecil , her secretary of state and chief advisor .
 person: Crown; person: William Cecil
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: Crown, William Cecil 
Answer:
 person: Crown; person: William Cecil