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 french enter the revolutionary war?" whose answer is February 6, 1778.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when did france enter the american revolutionary war
Useful Output:

Doc 1: When Benjamin Franklin himself traveled to Paris in November 1776, much of the secrecy surrounding the negotiations with France fell away. But
Doc 2: Spain officially declared war on Great Britain on June 21, 1779, which brought them into the American Revolutionary War. In 1779, the Pennsylvania Gazette, a
Doc 3: In December 1777, news reached France of the British surrender at Saratoga, a victory that convinced the French to make a full alliance with the
Doc 4: France entered the American Revolution on the side of the colonists in 1778, turning what had essentially been a civil war into an international
Doc 5: From the spring of 1776, France (together with Spain) was informally involved in the American Revolutionary War by providing supplies, ammunition, and guns. The