5538
In a simple ceremony before the newly elected parliament , Vojislav Kostunica took his oath of office late tonight as President of Yugoslavia , marking the end of 13 years of autocratic rule under Slobodan Milosevic .
 Vojislav Kostunica, late tonight, Yugoslavia, 13 years, Slobodan Milosevic
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 Vojislav Kostunica, late tonight, Yugoslavia, 13 years, Slobodan Milosevic