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Alvin Greene , the Democratic nominee , was the first major-party African-American U.S. Senate candidate in South Carolina since Reconstruction .
 person: Alvin Greene
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: Alvin Greene 
Answer:
 person: Alvin Greene