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: "how many times have we been to the bottom of the mariana trench?" whose answer is Four.
Each document should contain about 30 words, and these documents should contain useful information.

Query: how many times have humans visited the bottom of the mariana trench
Useful Output:

Doc 1: I was one of less than 30 people to have made that trip. So few people have ever been down to see the bottom of the Mariana Trench because it's
Doc 2: Only three people have ever made it to the Challenger Deep. The first two did it 59 years ago this week: Navy Lt. Don Walsh, a submariner, and explorer Jacques
Doc 3: Few human expeditions have ventured to the Challenger Deep. The first came in 1960 with the historic dive of the Trieste bathyscaphe, a type of
Doc 4: Since then, roughly half a dozen ocean explorers have successfully reached the bottom of the Mariana Trench — and many more remotely operated
Doc 5: Nobody has walked on the bottom of the Mariana trench, but six people have descended to it in submersibles. In 1960 the US Navy submersible