313881
Belgian sprinter Tom Boonen of showed that he was the strongest kasseinfretter , or cobble-eater , by winning both the Tour of Flanders and Paris – Roubaix cobbled classics , propelling him to the top of the UCI ProTour rankings and thus earning him the white leaders jersey .
 Belgian, Tom Boonen, UCI ProTour
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Belgian, Tom Boonen, UCI ProTour