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Following the merger of his Liberian Action Party into the Unity Party in 2009 , Sherman was chosen to become the national chairman of the party .
 organization: Liberian Action Party; organization: Unity; person: Sherman
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: Liberian Action Party, Unity, Sherman 
Answer:
 organization: Liberian Action Party; organization: Unity; person: Sherman