Task: Explanation
Input (English): Pyotr Alexandrovich Yefremov (Russian: Пётр Александрович Ефремов , born November 17 (O.S., 2), 1830, Moscow, Russian Empire, - died January 8, 1908 [O.S. December 26, 1907], Saint Petersburg, Russian Empire) was a Russian literary historian, publisher, editor and essayist whose works were published regularly by "Sovremennik" (where he debuted in 1857), "Otechestvennye Zapiski", "Russky Arkhiv", "Russkaya Starina", "Istorichesky Vestnik", newspapers "Golos", "Novoye Vremya", "Russkiye Vedomosti". In 1864-1865 he edited the "Knizhny Vestnik" (The Books Herald) magazine. Praised as one of the most competent literary scholars of the 19th century, Pyotr Yefremov compiled, edited and published the series of The Works of: Denis Fonvizin (1866), Valerian Maykov (1867), Antiochus Kantemir (1867-1868), Vladimir Lukin (1868), Bogdan Yelchaninov (1868), Alexander Radishchev (1872, Saint Petersburg; banned at the time), Kondraty Ryleyev (1872, 1874), Mikhail Lermontov (1873, 1880, 1887, 1889, also the "Early Dramas" compilation, 1880), Vasily Zhukovsky (1878, 1885), Alexander Pushkin (1880, 1882, 1905, plus two "Yevgeny Onegin" editions, 1874, 1882), Alexander Polezhayev (1889). He is credited with having discovered, published and written analytical essays on numerous hitherto unknown autographs by classics like Pushkin, Ryleyev, Lermontov, Radishchev, Fonvizin, Zhukovsky. Question: Who was this playwright of the Russian Enlightenment whose works were edited and published by Pyotr Yefremov and whose satirical comedies mock contemporary Russian gentry? Answer: Denis Fonvizin
Output (English):  Praised as one of the most competent literary scholars of the 19th century, Pyotr Yefremov compiled, edited and published the series of The Works of: Denis Fonvizin 1866, Valerian Maykov 1867, Antiochus Kantemir 18671868, Vladimir Lukin 1868, Bogdan Yelchaninov 1868, Alexander Radishchev 1872, Saint Petersburg; banned at the time, Kondraty Ryleyev 1872, 1874, Mikhail Lermontov 1873, 1880, 1887, 1889, also the Early Dramas compilation, 1880, Vasily Zhukovsky 1878, 1885, Alexander Pushkin 1880, 1882, 1905, plus two Yevgeny Onegin editions, 1874, 1882, Alexander Polezhayev 1889.