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: "what is the most common language in mexico?" whose answer is Spanish.
Each document should contain about 30 words, and these documents should contain useful information.

Query: most common language in mexico
Useful Output:

Doc 1: Main Mexican lingo is Spanish. It is spoken by 92,7% of Mexican population. You can see a chart that illustrated language distribution in Mexico below.
Doc 2: The only official language in Mexico is Spanish. Globally it is second only to Mandarin/Chinese and is spoken by over 470 million people as a first language. It
Doc 3: Official language of Mexico. Although Spanish is the most widely spoken language in the country, even by more than 95% of its population, it
Doc 4: The official language of Mexico is Spanish, which is spoken by 90 percent of the people. Indian languages of the Aztecs, Mayans, and other
Doc 5: Spanish is the main language used in Mexico, just as it is in over two dozen countries scattered across five continents.