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Following the death of Richard Garrett he was appointed Assistant Keeper of Printed Books in 1850 , Keeper ( 1856 – 66 ) ( following the promotion of Anthony Panizzi ) , and then Principal Librarian in charge of the museum ( 1866 – 78 ) .
 person: Richard Garrett; person: Anthony Panizzi
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: Richard Garrett, Anthony Panizzi 
Answer:
 person: Richard Garrett; person: Anthony Panizzi