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Sir David Douglas Reid , 1st Baronet ( 24 August 1872 – 23 March 1939 ) was the Unionist Member of Parliament for Down from 1922 until his death in 1939 .
 person: Sir; person: 1st Baronet; organization: Unionist; location: Down
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: Sir, 1st Baronet, Unionist, Down 
Answer:
 person: Sir; person: 1st Baronet; organization: Unionist; location: Down