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He led the Labour group on Hampstead borough council from 1945 to 1949 and entered Parliament as member for Heywood and Radcliffe in a by-election in February 1946 .
 organization: Labour; location: Hampstead
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: Labour, Hampstead 
Answer:
 organization: Labour; location: Hampstead