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 spoken in afghanistan?" whose answer is Dari.
Each document should contain about 30 words, and these documents should contain useful information.

Query: most common language spoken in afghanistan
Useful Output:

Doc 1: Pashto or Pashtu is the "official" language of Afghanistan and most people speak it more or less. Pashtuns are considered the true Afghans.
Doc 2: Spoken as a second language, then yes Farsi comes at 78%. The mother language that is most common is Pashto at roughly 65%. Upvote 2
Doc 3: Dari, rather than Pashto, serves as the lingua franca for the languages of Afghanistan. Roughly one-third of the population of Afghanistan (
Doc 4: According to my Dorling Kindersley reference book, Dari Persian, and Pashto; Tajik and others are also spoken.
Doc 5: The majority of people in Afghanistan speak Pashto or Dari, depending on their ethnic background and region. How can I learn an Afghanistan language? To learn