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During his inland travel experiences , Berzeviczy wrote many reform ideas to the king , Joseph II about boosting the economy of Hungary , but they were inefficient .
 Berzeviczy, Joseph II, Hungary
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Berzeviczy, Joseph II, Hungary