10809
Thiel said on Wednesday that he had also asked Olympic 200 and 400 champion Michael Johnson to run as well as Christie .
 Michael Johnson, Olympic, Thiel, Christie
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Michael Johnson, Olympic, Thiel, Christie