40521
Dissatisfied over a decision to travel to Austria-Hungary in order to play a friendly match with Hajduk Split , this group left BSK and formed their own club , naming it Sportski klub Velika Srbija .
 Austria-Hungary, Hajduk Split, BSK
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-Hungary, Hajduk Split, BSK