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 is the highest glacier in the world?" whose answer is Khumbu Glacier.
Each document should contain about 30 words, and these documents should contain useful information.

Query: highest altitude glacier in the world
Useful Output:

Doc 1: Siachen Glacier is the highest battlefield in the world. It is as high as 21000 feet. It stretches to 75 km. This is the second-longest
Doc 2: The terminal moraine of the Khumbu Glacier looms 400 meters above Dughla, a rest stop for climbers. This is the debris bulldozed down from Mount
Doc 3: The Khumbu Glacier snakes down from the summit of Mount Everest into northeastern Nepal. The highest glacier in the world, it's famous for
Doc 4: Siachen Glacier is known as the highest-altitude battle site in the world and is situated near the Indo-Pak Line of Control.
Doc 5: Highest glacier ; Who: Khumbu Glacier ; What: 8000 metre(s) ; Where: Nepal ; When: Not applicable.