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: "how many ethnic groups are there in cameroon?" whose answer is approximately 250.
Each document should contain about 30 words, and these documents should contain useful information.

Query: how many ethnic groups are there in cameroon
Useful Output:

Doc 1: Cameroon, a culturally diverse nation is home to over 240 ethnic groups, each with their own cultural practices. The ethnic groups found in
Doc 2: People and Society · Population · Nationality · Ethnic groups · Languages · Religions · Age structure · Dependency ratios · Median age.
Doc 3: There are many different cultures represented in the country of Cameroon, which is situated in central Africa. About 250 distinct ethnic groups coexist in
Doc 4: However, it is estimated that there are about 250 ethnic groups in the country. Among them are the Cameroonians of the Highlands, the Bantu, the Kirdis, the
Doc 5: Cameroon is Home to Over 27 million People and More than 250 Ethnic Groups | Cameroon #rakghana #cameroon #cameroonian #cameroonians