7136
The most important event that occurred in this building is declaration of Serbian Vojvodina from a balcony by Josif Rajačić in May 1848 , known in Serbia as May Assembly , during European Revolutions of 1848 .
 Josif Rajačić, Serbia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Josif Rajačić, Serbia