2499
He turned professional in the summer of 2006 , after signing with Nike and burst onto the scene shortly after at the 2006 Pan Pacific Swimming Championships where he set a meet record in the 50-meter freestyle with a time of 21.84 seconds .
 Nike
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Nike