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The second son of Maharaja Sir Sardar Singh , he succeeded his elder brother Maharaja Sir Sumair Singh upon his death in 1918 ; in 1922 he served as the ADC to the Prince of Wales ( later Edward VIII ) .
 person: Singh; person: Singh; person: Edward VIII
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: Singh, Singh, Edward VIII 
Answer:
 person: Singh; person: Singh; person: Edward VIII