Question: Who was the oppressive Communist leader of the country that Andrei Ivanovitch is from, that was deposed in 1989?

full_context: Document 1: Frédéric Chopin: Chopin's music remains very popular and is regularly performed, recorded and broadcast worldwide. The world's oldest monographic music competition, the International Chopin Piano Competition, founded in 1927, is held every five years in Warsaw. The Fryderyk Chopin Institute of Poland lists on its website over eighty societies world-wide devoted to the composer and his music. The Institute site also lists nearly 1,500 performances of Chopin works on YouTube as of January 2014.
Document 2: Andrew West (pianist): Andrew West read English at Clare College, Cambridge University before going on to study piano and composition with Christopher Elton and John Streets at the Royal Academy of Music. He won second prize for piano at the Geneva International Music Competition in 1990. He now coaches on the Vocal Faculty at the Guildhall School of Music and Drama as well as teaching piano accompaniment at the Royal Academy of Music. He is also one of the artistic directors of the Nuremberg International Chamber Music Festival.
Document 3: Constantin Dăscălescu: Constantin Dăscălescu (; 2 July 1923 – 15 May 2003) was a Romanian communist politician who served as Prime Minister of Romania (21 May 1982 – 22 December 1989) during the communist rule of Nicolae Ceaușescu until the Romanian Revolution.
Document 4: Iosif Dan: Iosif Dan (commonly known as Dan Iosif, 14 October 1950 – 5 December 2007) was a Romanian politician who was a leading figure in the 1989 Romanian revolution, leading protests in Bucharest in the final days of Nicolae Ceauşescu's 25-year rule.
Document 5: Nicolae Ceaușescu: Nicolae Ceaușescu (Romanian: (nikoˈla. e t͡ʃe̯a. uˈʃesku) (listen); 26 January 1918 -- 25 December 1989) was a Romanian Communist politician. He was general secretary of the Romanian Communist Party from 1965 to 1989, and hence the second and last Communist leader of Romania. He was also the country's head of state from 1967, serving as President of the State Council, from 1974 concurrently as President of the Republic, until his overthrow in the Romanian Revolution in 1989.
Document 6: Nicolae Rădescu: Nicolae Rădescu (; 30 March 1874, Călimănești – 16 May 1953, New York City) was a Romanian army officer and political figure. He was the last pre-communist rule Prime Minister of Romania, serving from 7 December 1944 to 1 March 1945.
Document 7: Frédéric Chopin: Numerous recordings of Chopin's works are available. On the occasion of the composer's bicentenary, the critics of The New York Times recommended performances by the following contemporary pianists (among many others): Martha Argerich, Vladimir Ashkenazy, Emanuel Ax, Evgeny Kissin, Murray Perahia, Maurizio Pollini and Krystian Zimerman. The Warsaw Chopin Society organizes the Grand prix du disque de F. Chopin for notable Chopin recordings, held every five years.
Document 8: Constantin Pîrvulescu: Constantin Pîrvulescu (November 10, 1895, Vâlcea County – July 11, 1992, Roman) was a Romanian communist politician, one of the founders of the Romanian Communist Party (PCR), who, as time went on, became an active opponent of s leader Nicolae Ceauşescu. Briefly expelled from the Party in 1960, he was re-admitted and elected to the Party Revision Committee in 1974.
Document 9: Andrey Lukin: Since then his career failed to live up to the earlier promise, but he still became an International Master and won five Leningrad (Saint Petersburg) championships, which at the time were equal in strength to a national championship of an average European country, with many titled players taking part. He combined his chess playing with a nine to five job as an engineer.
Document 10: Vasile Luca: Vasile Luca (born László Luka; 8 June 1898 – 23 July 1963) was an Austro-Hungarian-born Romanian and Soviet communist politician, a leading member of the Romanian Communist Party (PCR) from 1945 and until his imprisonment in the 1950s. Noted for his activities in the Ukrainian SSR in 1940–1941, he sided with Ana Pauker during World War II, and returned to Romania to serve as the minister of finance and one of the most recognizable leaders of the Communist regime. Luca's downfall, coming at the end of a conflict with Gheorghe Gheorghiu-Dej, signaled that of Pauker.
Document 11: George Enescu Festival: The George Enescu Festival (also known as George Enescu International Festival and Competition), held in honor of the celebrated Romanian composer George Enescu, is the biggest classical music festival and classical international competition held in Romania and one of the biggest in Eastern Europe. Enescu's close associate George Georgescu organized the first festival in 1958; highlights included a performance of Bach's Concerto for Two Violins with Yehudi Menuhin and David Oistrakh as soloists and a staging of Enescu's sole opera, "Œdipe", with Constantin Silvestri conducting.
Document 12: Andrei Ivanovitch: Andrei Ivanovitch (born 1968 in Bucharest, Romania) is an international classical pianist and winner of a number of international competitions.
Document 13: Ivan Puni: Ivan Puni was born in Kuokkala (then Grand Duchy of Finland in the Russian Empire, now Repino in Russia) to a family of Italian origins. He is the grandson of an eminent Italian composer of ballet music, Cesare Pugni.
Document 14: Nikita Khrushchev: Nikita Sergeyevich Khrushchev (15 April (O.S. 3 April) 1894 -- 11 September 1971) was a Soviet politician who led the Soviet Union during part of the Cold War as the First Secretary of the Communist Party of the Soviet Union from 1953 to 1964, and as Chairman of the Council of Ministers, or Premier, from 1958 to 1964. Khrushchev was responsible for the de-Stalinization of the Soviet Union, for backing the progress of the early Soviet space program, and for several relatively liberal reforms in areas of domestic policy. Khrushchev's party colleagues removed him from power in 1964, replacing him with Leonid Brezhnev as First Secretary and Alexei Kosygin as Premier.
Document 15: Leslie Wright (pianist): Leslie Wright received his first piano lessons at just six years old. In 1953 he joined the Music Academy of Santa Cecilia in Rome. He graduated in 1960, winning first prize and jury mention. In 1961 he participated in the International Piano Competition in Geneva, taking third place. In 1962 he made a tour of several South American countries appearing in their best theaters and concert halls. In 1963 he won first prize in the "Biernans" competition in Paris. Shortly afterwards he was honored in the global contest of Bilbao from among 44 virtuoso pianists worldwide. In 1965 he won a major prize in the International Piano Competition "Marguerite Long", in Paris.
ground_truth: Nicolae Ceaușescu
sub_queries: Where was Andrei Ivanovitch from? Answer: Romania
oppressive communist leader of Romania who was deposed in 1989 Answer: Nicolae Ceaușescu