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En-sipad-zid-ana of Larsa was the sixth pre-dynastic king of Sumer ( before ca. 2900 BC ) , according to the Sumerian king list .
 En-sipad-zid-ana
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 En-sipad-zid-ana