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.

Raja Chatrapati Singh (19191998) was an Indian percussionist. He was famous for his virtuosity on Pakhavaj drums used in Hindustani Classical Music. Question: Who is the Indian percussionist known for his work on the Pakhavaj drums? Answer: Chatrapati Singh
Raja Chatrapati Singh 19191998 was an Indian percussionist.

Anatoly Ivanovich Maltsev (also: Malcev, Mal'cev; Russian: ; 27 November N.S./14 November O.S. 1909, Moscow Governorate 7 June 1967, Novosibirsk) was born in Misheronsky, near Moscow, and died in Novosibirsk, USSR. He was a mathematician noted for his work on the decidability of various algebraic groups. Malcev algebras (generalisations of Lie algebras) are named after him. 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
Anatoly Ivanovich Maltsev also: Malcev, Malcev; Russian: ; 27 November N.S.14 November O.S. 1909, Moscow Governorate 7 June 1967, Novosibirsk was born in Misheronsky, near Moscow, and died in Novosibirsk, USSR.

Yury Nikolayevich Grigorovich (Russian: ; born 2 January 1927 in Leningrad) is a Soviet and Russian dancer and choreographer who dominated the Russian ballet for 30 years. Question: Which Soviet and Russian dancer choreographed the ballet, Spartacus? Answer: Yury Grigorovich
Yury Nikolayevich Grigorovich Russian: ; born 2 January 1927 in Leningrad is a Soviet and Russian dancer and choreographer who dominated the Russian ballet for 30 years.