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: "when did the five day work week start?" whose answer is 1940.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when did the five day work week start
Useful Output:

Doc 1: In 1922, the industrialist told employees he was instituting a 40-hour, five-day workweek and that his automotive plants would be closed
Doc 2: The common five-day workweek has been around since 1940. That was the year the five-day, eight-hour workweek became standardized by the federal
Doc 3: In 1926, Henry Ford, the founder of Ford Motor Company, made a bold move by introducing a 40-hour work week for his employees. Ford believed
Doc 4: But it wasn't until 1922, when industrialist Henry Ford began experimenting with a 40-hour workweek, that employees got their first taste of the
Doc 5: Finally, in 1926, Henry Ford played a huge role in solidifying the weekend as we know it. By shutting down his factories for the entire weekend,