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: "over what land route did the bubonic plague spread from asia to europe?" whose answer is Silk Road.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Silk Road trade routes during the Black Death
Useful Output:

Doc 1: Silk Road, ancient trade route, linking China with the West, that carried goods and ideas between the two great civilizations of Rome and China.
Doc 2: The Silk Road was a network of trade routes connecting China and the Far East with the Middle East and Europe.
Doc 3: When traders travel from East to West, they go from Fergana to Tashkent, and infected travelers thereby infect people in Tashkent. Traders not
Doc 4: Merchants carried silk from China to Europe, where it dressed royalty and wealthy patrons. Other favorite commodities from Asia included jade
Doc 5: Plague might be repeatedly introduced to Europe through the overland trade routes such as the Silk Road. In such case, a plague pandemic