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In 1920 he made aliyah to Mandatory Palestine , where he was amongst the founders of the Histadrut trade union .
 location: Mandatory Palestine; organization: Histadrut
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: Mandatory Palestine, Histadrut 
Answer:
 location: Mandatory Palestine; organization: Histadrut