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Over his career , he made the fourth most sub-10 - second runs ( 51 ) in the 100 m , only surpassed by Asafa Powell , Justin Gatlin and Usain Bolt .
 person: Asafa Powell; person: Justin Gatlin; person: Usain Bolt
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: Asafa Powell; person: Justin Gatlin; person: Usain Bolt