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Among those who pioneered the organization were former stars Otto Graham , Branch Rickey , Bobby Richards , Carl Erskine and Bill Krisher .
 person: Otto Graham; person: Branch Rickey; person: Bobby Richards; person: Carl Erskine; person: Bill Krisher
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: Otto Graham, Branch Rickey, Bobby Richards, Carl Erskine, Bill Krisher 
Answer:
 person: Otto Graham; person: Branch Rickey; person: Bobby Richards; person: Carl Erskine; person: Bill Krisher