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: "Were Dmitri Anosov and Mikhail Kravchuk both mathematician?" whose answer is yes.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Mikhail Kravchuk mathematician
Useful Output:

Doc 1: Mikhail Kravchuk (1892 - 1942) - world-renowned mathematician, one of the inventors of the computer, the author of developments used by
Doc 2: Mikhail Pilipovich Kravchuk  Article PDF. Download to read the full article text. Use our pre-submission checklist. Avoid common mistakes on your manuscript.
Doc 3: Category:Mikhail Kravchuk (mathematician). Good pictures. Advanced All images; Featured pictures; Featured videos; Quality images; Valued
Doc 4: Category:Mikhail Kravchuk (mathematician). Imagens boas. Avançado  Editar. Esta categoria está localizada em Category:Mykhailo Kravchuk.
Doc 5: Kravchuk was a Professor of Mathematical Statistics in Kyiv, Ukraine. He discovered the "Krawtchouk" polynomials, and made penetrating contributions to various