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Leland Stanford Roberts ( 1884 – 1949 ) , commonly known as Lee S. Roberts , was an American composer and pianist .
 person: Roberts; person: Lee S. Roberts
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: Roberts, Lee S. Roberts 
Answer:
 person: Roberts; person: Lee S. Roberts