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 siberian tigers are in the wild?" whose answer is 562.
Each document should contain about 30 words, and these documents should contain useful information.

Query: current estimate of siberian tigers in the wild
Useful Output:

Doc 1: About 540 Siberian tigers are estimated to exist in the wild in a huge area straddling Russia, China and possibly North Korea, having made a
Doc 2: The most recent survey was in 2015 and showed that populations had increased to between 480 and 540 tigers. Amur tiger in a rehabilitation
Doc 3:  tigers — only the Bengal and Siberian are not in dire straits. The current global wild tiger population is estimated to be around 4,000
Doc 4: Amur tiger facts; the Amur tiger, Panthera tigris altaica is the largest big cat in the world. Today fewer than 500 live in the Russian Far East with
Doc 5: Amur Tigers, also known as Siberian Tigers, are the largest  Ans: As of recent estimates, around 500-600 Amur Tigers remain in the wild.