You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "who unified egypt and became the first pharaoh?" whose answer is Narmer.
Each document should contain about 30 words, and these documents should contain useful information.

Query: who was the first pharaoh of ancient Egypt
Useful Output:

Doc 1: Narmer was the name of the first pharaoh of the 1st dynasty, and Menes was an honorific title, meaning “he who endures.” Important
Doc 2: Current scholarly consensus is that Narmer (perhaps also known as Menes) was the first king to unify Upper and Lower Egypt into a single Kingdom.
Doc 3: Reign of Menes, a.k.a. Narmer, first king who is thought to have unified Upper and Lower Egypt. c. 3150 BCE. King Menes unifies Egypt through conquest. 2613 BCE
Doc 4: The first Pharaoh was Menes, also known as Mizraim, and Manis. And Aha-Men. He conquered Egypt in 3113 BCE and ruled until his death in 3050 BCE
Doc 5: However, one name stands out: Narmer. Ancient sources agree that he was the first king, the one to unify Upper and Lower Egypt into one kingdom