72093
According to his inscriptions , he faced widespread revolts , and had to reconquer the cities of Ur , Umma , Adab , Lagash , Der , and Kazallu from rebellious " ensis " : Rimush introduced mass slaughter and large scale destruction of the Sumerian city-states , and maintained meticulous records of his destructions .
 Ur, Umma, Adab, Lagash, Der, Kazallu, Rimush
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ur, Umma, Adab, Lagash, Der, Kazallu, Rimush