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In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.

Vladimir Iosifovich Levenshtein (Russian: ; ] ; born 1935) is a Russian scientist who has done research in information theory, error-correcting codes, and combinatorial design. Among other contributions, he is known for the Levenshtein distance and a Levenshtein algorithm, which he developed in 1965. Question: Which of the following is known for his work on the decidability of algebraic groups: Anatoly Maltsev or Vladimir Levenshtein? Answer: Anatoly Ivanovich Maltsev
Output:
Vladimir Iosifovich Levenshtein Russian: ; ; born 1935 is a Russian scientist who has done research in information theory, errorcorrecting codes, and combinatorial design.