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He joined Magic Johnson , Michael Cooper , Kareem Abdul-Jabbar , and Kurt Rambis as the only players to accomplish this feat since the Boston Celtics of the 1950 s and 1960 s led by Bill Russell .
 person: Magic Johnson; person: Michael Cooper; person: Kareem Abdul-Jabbar; person: Kurt Rambis; organization: Boston Celtics; person: Bill Russell
Please list all entity words in the text that fit the category.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} 
Answer:
 person: Magic Johnson; person: Michael Cooper; person: Kareem Abdul-Jabbar; person: Kurt Rambis; organization: Boston Celtics; person: Bill Russell