Task: Question Generation
Input (English): Context : Some Egyptologists hold that Menes is the same person as Hor-Aha and that he inherited an already-unified Egypt from Narmer; others hold that Narmer began the process of unification but either did not succeed or succeeded only partially, leaving it to Menes to complete. 
Answer : Hor-Aha
Output (English): What was replaced Narmer?