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Although Sir John Kotelawala was expected to succeed him , his son Dudley Senanayake , Minister of Agriculture was appointed Prime Minister on 26 March 1952 by the Governor-General Lord Soulbury .
 person: John Kotelawala; person: Dudley Senanayake; person: Soulbury
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: John Kotelawala, Dudley Senanayake, Soulbury 
Answer:
 person: John Kotelawala; person: Dudley Senanayake; person: Soulbury