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 led the first portuguese voyage to benin?" whose answer is Joao Afonso de Aveiro.
Each document should contain about 30 words, and these documents should contain useful information.

Query: first Portuguese voyage to Benin
Useful Output:

Doc 1: relating to the Benin voyage mentioned in the present document, but, although Portuguese trade with the rivers was after 1519 under the control of a royal
Doc 2: The Portuguese first explored the coast of Benin in 1472 but did not begin trading there until 1553. During the 17th century the Dutch
Doc 3: Culture#AfricaKings#Education# The Portuguese were the first Europeans to explore the Great Benin Kingdom in the late 15th century.
Doc 4: The earliest Europeans to visit Benin Empire were the Portuguese. The efforts of the Portuguese leader named Prince Henry the Navigator led
Doc 5: It was an area controlled by the powerful kingdom of Benin located in the hinterland north of the delta. The kingdom was not known to Europeans