When did the Sumerian Empire end?
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Sumer is part of Mesopotamia.
Mesopotamia is part of Sumer .
When did the Sumerian Empire end?</s>Sumer is part of [unused1]Mesopotamia                [unused2] .
When did the Sumerian Empire end?</s>Sumer is part of Mesopotamia.
When did the Sumerian Empire end?</s> [unused1]Mesopotamia                [unused2] is part of Sumer .
When did the Sumerian Empire end?</s>Mesopotamia is part of Sumer .
When did the Sumerian Empire end?</s>[unused1]Mesopotamia[unused2],0,[unused1]Mesopotamia[unused2],[unused1]Mesopotamia[unused2],0,Sumer,Sumer,part of,[unused1]Mesopotamia[unused2],Sumer,0,Sumer
When did the Sumerian Empire end?</s>Mesopotamia,0,Mesopotamia,Mesopotamia,0,Sumer,Sumer,part of,Mesopotamia,Sumer,0,Sumer