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 was the first chief of naval staff in nigeria?" whose answer is Captain F.W. Skutil.
Each document should contain about 30 words, and these documents should contain useful information.

Query: first Chief of Naval Staff Nigeria
Useful Output:

Doc 1: The University of Nigeria, Nsukka (UNN) hosted the Chief of the Nigerian Navy, Vice Admiral El Ogalla AM GSS psc fdc(+) M.Sc B.Sc, who visited the University.
Doc 2: Rear Admiral Emmanuel Ikechukwu Ogalla was born on December 20, 1968, in Umuopu Enugu Ezike, Igbo Eze North LGA of Enugu State, Nigeria.
Doc 3: The Nigerian Chief of Naval Staff, Rear Admiral Emmanuel Ogalla has appreciated the National Assembly for the success achieved by the Navy over the years.
Doc 4: The Arewa Peoples' Assembly has written an open letter to President Bola Ahmed Tinubu, urging him to remove Admiral Emmanuel Ogalla as Chief of Naval Staff.
Doc 5: Chiefs of Naval Staff (Nigeria) · 1. Suleiman Saidu. Nigerian politician · 2. Allison Madueke. Nigerian politician · 3. Murtala Nyako. Nigerian politician · 4.