Question: Afterplay is a 2002 one-act play by Brian Friel, it centres on two characters from Chekhov (Sonya from "Uncle Vanya" and Andrey from which play by the Russian author and playwright, Anton Chekhov?
Context: Uncle Vanya (Russian: Дядя Ваня , "Dyadya Vanya " ) is a 1970 film adaptation of the Anton Chekhov play of the same title and directed by Andrey Konchalovskiy. The Cherry Orchard (Russian: "Вишнëвый сад" , "Vishnevyi sad " ) is the last play by Russian playwright Anton Chekhov.  Written in 1903, it was first published by "Znaniye" (Book Two, 1904), and came out as a separate edition later that year in Saint Petersburg, via A.F. Marks Publishers.  It opened at the Moscow Art Theatre on 17 January 1904 in a production directed by Konstantin Stanislavski.  Chekhov described the play as a comedy, with some elements of farce, though Stanislavski treated it as a tragedy.  Since its first production, directors have contended with its dual nature.  It is often identified as one of the three or four outstanding plays by Chekhov, along with "The Seagull", "Three Sisters", and "Uncle Vanya". Uncle Vanya is a 1963 British film adaptation of the work "Uncle Vanya" by Anton Chekhov.  The film was directed by Stuart Burge.  It was a filmed version of the Chichester Festival production, directed by (and starring) Laurence Olivier as Astrov, and also starring Michael Redgrave (Vanya), Rosemary Harris (Elena), and Joan Plowright (Sonya). Uncle Vanya is a 1957 American film adaptation of the play "Uncle Vanya" by Anton Chekhov.  Filmed concurrently with an Off Broadway production, it was both co-produced and co-directed by actor Franchot Tone, who starred as Dr. Astroff.  Tone's wife at the time, Dolores Dorn-Heft, co-starred as Elena Andreevna, appearing in the only role not featuring an actor from the stage version in New York, where the part was played by Signe Hasso.  The title role was played by George Voskovec. On the Harmful Effects of Tobacco (Russian: О вреде табака , "O vredye tabaka " ) is a one-act play written by Russian author Anton Chekhov; it has one character, Ivan Ivanovich Nyukhin.  First published in 1886, the play was revised by Chekhov and is best known from his 1902 version.  This was first published in English in "The Unknown Chekhov" (1954), a collection of writings. Afterplay is a 2002 one-act play by Brian Friel.  It centres on two characters from Chekhov (Sonya from "Uncle Vanya" and Andrey from "Three Sisters") meeting in Moscow in the 1920s. Sonya's Story (Russian: История Сони) is an opera by the British composer Neal Thornton to a libretto based on the original Russian text of Anton Chekhov's play "Uncle Vanya".  The libretto reproduces passages from "Uncle Vanya" in English translation with additional spoken text by Neal Thornton.  "Sonya's Story" premiered on 7 August 2010 at the Riverside Studios in Londonto celebrate Chekhov's 150th anniversary.  The production, part of the Tête à Tête festival was directed by Sally Burgess and designed by Charles Phu. Three Sisters (Russian: Три сeстры́ , "Tri sestry " ) is a play by the Russian author and playwright Anton Chekhov.  It was written in 1900 and first performed in 1901 at the Moscow Art Theatre.  The play is sometimes included on the short list of Chekhov's outstanding plays, along with "The Cherry Orchard", "The Seagull" and "Uncle Vanya". Melikhovo (Russian: Ме́лихово ) is a writer's house museum in the former country estate of the Russian playwright and writer Anton Chekhov.  Chekhov lived in the estate from March 1892 until August 1899, and it is where he wrote some of his most famous plays and stories, including The Seagull and Uncle Vanya.  The estate is located about forty miles south of Moscow near Chekhov. Uncle Vanya (Russian: Дядя Ваня , "Dyadya Vanya " ) is a play by the Russian playwright Anton Chekhov.  It was first published in 1897 and received its Moscow première in 1899 in a production by the Moscow Art Theatre, under the direction of Konstantin Stanislavski.
Answer: Three Sisters