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: "Which soft drink was originally developed in 1940 in Tennessee, Dr Pepper or Mountain Dew?" whose answer is Mountain Dew.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when was mountain dew first produced
Useful Output:

Doc 1: Those famous Smoky Mountains of East Tennessee were the birthplace of the soft drink we know today as “Mountain Dew.” It was founded in 1948 by
Doc 2: The product shined publicly for the first time in 1947. The Hartman brothers made a run of Mountain Dew soda for a bottlers convention in
Doc 3: Mountain Dew may be a competitor to Coke and Sprite today, but back in the 1940s, when Tennessee bottlers Barney and Ally Hartman developed the initial formula,
Doc 4: Whatever they did to the recipe worked because in 1964, PepsiCo came knocking at their door, looking to buy the rights to Mountain Dew.
Doc 5: Here in 1948 the brothers created and trademarked the soft drink Mountain Dew as a clear lemon-lime flavored drink. The first franchise for