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Dalmatia was the birthplace of the Roman Emperor Diocletian , who , upon retirement from Emperor in AD 305 , built a large palace near Salona , out of which the city of Split later developed .
 Dalmatia, Diocletian, Salona, Split
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Dalmatia, Diocletian, Salona, Split