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Moses Fleetwood Walker is considered the first African-American to play at the major league level , in 1884 .
 person: Moses Fleetwood Walker
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: Moses Fleetwood Walker 
Answer:
 person: Moses Fleetwood Walker