310391
When he and his family emigrated to Austria in 1990 , Donev taught for a chess school at $ 10 per hour to support his study of computer science .
 Austria, Donev
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Austria, Donev