Question: Who directed he Paris Opera Ballet from 1983 to 1989 and its chief choreographer until October 1992, and he gave the tittle of étoile to a member of the Paris Opera Ballet from 1978?

full_context: Document 1: Yury Grigorovich: Yury Nikolayevich Grigorovich (Russian: Ю́рий Никола́евич Григоро́вич ; born 2 January 1927 in Leningrad) is a Soviet and Russian dancer and choreographer who dominated the Russian ballet for 30 years.
Document 2: Vladimir Vasiliev (dancer): Vladimir Viktorovich Vasiliev (Russian: Влади́мир Ви́кторович Васи́льев), born 18 April 1940 in Moscow, Russia, is a Russian ballet dancer and choreographer. He was a principal dancer with the Bolshoi Ballet and its director from 1995 to 2000.
Document 3: Isabelle Guérin: Isabelle Guérin (born 1961) is a French ballet dancer. She was a member of the Paris Opera Ballet from 1978. In 1985, she received the title of étoile from Rudolf Nureyev. John Rockwell has described Guérin and Laurent Hilaire as "two of the Opera Ballet's greatest stars". She danced classical and modern repertoires until her retirement in 2001.
Document 4: Ghislaine Thesmar: Ghislaine Thesmar (born 1943 in Beijing, China), a Ballerina, who studied at the Paris Conservatoire. In 1968, she married the dancer and choreographer Pierre Lacotte. Companies she danced with include Ballet du Marquis de Cuevas (1961), Lacotte's company, then the Paris Opera Ballet from 1972 to 1985; unusually, she joined the company directly as an "étoile" (principal). She led the Ballets de Monte Carlo with Lacotte from 1986 to 1988. She danced as a guest for the Rambert Ballet, the Grands Ballets Canadiens and the New York City Ballet. She has taught for the Paris Opera Ballet. She was frequently partnered by Michael Denard. Her most celebrated roles include Odette/Odile in "Swan Lake" and Giselle in "Giselle". The ballet film "La Sylphide" (1972) has been released twice on DVD/video and features Thesmar and Denard in the principal roles of the Sylph and the Scotsman, James.
Document 5: Margot Fonteyn: Dame Margot Fonteyn de Arias, DBE (18 May 191921 February 1991), was an English ballerina. She spent her entire career as a dancer with the Royal Ballet, eventually being appointed "Prima Ballerina Assoluta" of the company by Queen Elizabeth II.
Document 6: Mikhail Baryshnikov: Mikhail Nikolayevich Baryshnikov (Russian: Михаи́л Никола́евич Бары́шников , Latvian: "Mihails Barišņikovs" ; born January 27, 1948), nicknamed "Misha" (Russian diminutive of the name "Mikhail"), is a Soviet and American dancer, choreographer, and actor.
Document 7: Cairo Opera Ballet Company: The Cairo Opera Ballet Company is the resident ballet company of the Cairo Opera House and a ballet school affiliated to Egypt's Higher Institute of Ballet. Its foundation began in 1958 during the presidency of Gamal Abdel Nasser through the efforts of Tharwat Okasha, Egypt's culture minister at the time, and Leonid Lavrovsky, the former artistic director of the Bolshoi Ballet who took a group of Egyptian dancers to Russia for two years of training. At the time of its founding, it was the only Arab resident classical ballet company in the Middle East.
Document 8: Marius Petipa: Marius Ivanovich Petipa (Russian: Ма́риус Ива́нович Петипа́), born Victor Marius Alphonse Petipa (11 March 181814 July [O.S. 1 July] 1910 ) was a French and Russian ballet dancer, pedagogue and choreographer. Petipa is considered to be the most influential ballet master and choreographer in ballet history.
Document 9: Nina Ananiashvili: Nina Ananiashvili (born: "Nino Ananiashvili", Georgian: ნინო ანანიაშვილი ; born March 28, 1963) is a Georgian ballerina and artistic director of the State Ballet of Georgia. She has been described by the Daily Telegraph as one of the twelve greatest ballerinas of all time, and in 2002 was named Best Ballerina of the Year by the US "Dance Magazine". Ananiashvili has been a prominent fixture of the Soviet, Russian and Georgian ballet scene for decades. Shortly before the fall of the Iron Curtain, in 1987 the New York Magazine critic praised Nina Ananiashvili as "the best thing about the Bolshoi's Giselle whether she appeared in the title role or as the queen of the wilis." In 2014, a film of her 1991 performance in Giselle with the Bolshoi ballet was released.
Document 10: Vaslav Nijinsky: Vaslav Nijinsky (also Vatslav; Russian: Ва́цлав Фоми́ч Нижи́нский ; ] ; Polish: "Wacław Niżyński" ; 12 March 1889/18908 April 1950) was a Russian ballet dancer and choreographer of Polish descent, cited as the greatest male dancer of the early 20th century. He was celebrated for his virtuosity and for the depth and intensity of his characterizations. He could dance "en pointe", a rare skill among male dancers at the time and was admired for his seemingly gravity-defying leaps.
Document 11: François Alu: François Alu (born 1993 in Fussy, Cher, France) is a French "Premier Danseur" (first soloist), of the Paris Opera Ballet. He entered the Paris Opera Ballet School in 2004, and the Paris Opera Ballet in 2010. At his first promotion competition, he was promoted to Coryphée, dancing as a free variation the act II solo of Solor, from La Bayadère by Rudolf Nureyev. The next year, he was promoted to "Sujet" (soloist), dancing as a free variation the act III solo of Solor, from La Bayadère by Rudolf Nureyev.
Document 12: Attilio Labis: Attilio Labis (born 1936) is a French ballet dancer and teacher. He began his training at the Opéra de Paris when he was nine years old and rose through the ranks of the school. In 1952 he was accepted into the corps de ballet Paris Opera Ballet, but in 1958 he had to join the military. Upon the completion his military service, he came back and successfully auditioned for a "Premier Danseur" (First soloist) position after only one week of training. He was promoted to "Danseur Étoile" (principal dancer) approximately one year later, after André Malraux saw him dance "Pas de Dieux", a choreography by Gene Kelly, and recommended he be promoted. He performed as a "Danseur Étoile" (principal dancer) in the Paris Opera Ballet from 1960 to 1972, then taught the company as a ballet teacher until his retirement<br>
Document 13: Rudolf Nureyev: Rudolf Khametovich Nureyev (Bashkir: Рудольф Хәмит улы Нуриев , Tatar: Рудольф Хәмит улы Нуриев , Russian: Рудо́льф Хаме́тович Нуре́ев ; 17 March 1938 – 6 January 1993) was a Soviet ballet dancer and choreographer. He was director of the Paris Opera Ballet from 1983 to 1989 and its chief choreographer until October 1992.
Document 14: Gelsey Kirkland: Gelsey Kirkland (born December 29, 1952) is an American ballerina. Kirkland joined the New York City Ballet in 1968 at age fifteen, at the invitation of George Balanchine. She was promoted to soloist in 1969 and principal in 1972. She went on to create leading roles in many of the great twentieth century ballets by Balanchine, Jerome Robbins, and Antony Tudor including Balanchine's revival of "The Firebird", Robbins' "Goldberg Variations", and Tudor's "The Leaves are Fading". Balanchine re-choreographed his version of Stravinsky's "The Firebird" specifically for her. She left the New York City Ballet to join the American Ballet Theatre in 1974.
Document 15: Irek Mukhamedov: Irek Mukhamedov OBE (born March 8, 1960 in Kazan, USSR), is a Soviet-born ballet dancer of Tatar origin who has danced with the Bolshoi Ballet & the Royal Ballet He trained at the Moscow Choreographic Institute under the guidance of Alexander Prokofiev between 1970 and 1978. Upon graduation he joined the Classical Ballet Company, where he spent three years touring around the world. It was with this company that he first danced Romeo, a role that was to become one of his most acclaimed. In 1981 he won the Grand Prix and Gold Medal at the International Ballet Competition in Moscow and was immediately invited to join the Bolshoi Ballet as a principal dancer, where he not only became Grigorovich's favourite danseur but went to become the youngest man ever to dance the leading role in "Spartacus". After leaving the Soviet Union, he became a Senior Principal Dancer with the Royal Ballet in London, remaining with the company for many years and dancing lead roles in the classic ballets as well as the English repertoire.
ground_truth: Rudolf Khametovich Nureyev