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 both Alexander Kronrod and Leonty Magnitsky mathematicians?" whose answer is yes.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Leonty Magnitsky mathematician
Useful Output:

Doc 1:  Leonty Filippovich Magnitsky, a mathematician, author of the first printed work in this field in Russia, shows the features of the textbook
Doc 2: Abstract (English): The preparation of future primary school teachers includes the analysis of textbooks and teaching aids in mathematics.
Doc 3: The project, dedicated to the first Russian textbook on Arithmetic and its author Leonty Filippovich Magnitsky, allows you to simultaneously form
Doc 4: Leonty Magnitsky was born as Leonty Telyatin, or Telyashin, in the town of Ostashkov in 1669. In 1703, when he worked as a mathematics teacher at the School of
Doc 5: arithmetic · mathematics. Native language. Russian. Relative. Nektary Telyashin (presumably, uncle). Notable work. Arithmetic (Magnitsky book)