307003
In 2008 , i.e. at the age of 21 , Anna Grzesiak started to take part in ITU triathlons and directely entered the elite category .
 Anna Grzesiak
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Anna Grzesiak