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" Hajde da ludujemo " ( Serbian Cyrillic : Хајде да лудујемо ; English translation : " Let 's go crazy " ) was the Yugoslav entry to the Eurovision Song Contest 1990 , held in Zagreb , SFR Yugoslavia ( present day Croatia ) .
 Yugoslav, Zagreb, SFR Yugoslavia, Croatia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Yugoslav, Zagreb, SFR Yugoslavia, Croatia