Question: Gelsey Kirkland created the lead role in Balanchine's revival of what ballet by Igor Stravinsky?

Context paragraphs:
Ragtime (I): Ragtime (I) is the second of three ballets made by New York City Ballet's co-founder and balletmaster George Balanchine to Igor Stravinsky's 1918 "Ragtime for Eleven Instruments"; with scenery by Robert Drew previously used for Lew Christensen's 1947 work for Ballet Society, "Blackface"; costumes by Karinska and lighting by David Hays.  The premiere took place on December 7, 1960, at City Center of Music and Drama, conducted by Robert Irving, as part of a quartet of works titled "Jazz Concert", together with dances by Todd Bolender's "Creation of the World", Francisco Moncion's "Les Biches" and John Taras' "Ebony Concerto".  Balanchine's 1966 "Ragtime (II)" was also made for City Ballet; his previous ballet to Stravinsky's "Ragtime" was one of a number of "informal little things" made in St. Petersburg in 1922.

Orpheus (ballet): Orpheus is a thirty-minute ballet composed by Igor Stravinsky in collaboration with choreographer George Balanchine in Hollywood, California in 1947.  The work was commissioned by the Ballet Society, which Balanchine founded together with Lincoln Kirstein and of which he was ballet master.  Sets and costumes were created by Isamu Noguchi.

Maggie Black: Margaret "Maggie" Black (March 31, 1930 – May 11, 2015) was a ballet teacher who taught in New York City during the 1970s and 1980s.  She coached dancers such as Martine Van Hamel, Kevin McKenzie, Natalia Makarova and Gelsey Kirkland.  She developed a ballet technique based on anatomy.  She stressed moving from a neutral spinal and pelvic alignment with weight evenly distributed throughout each foot.  She amassed a large following of both ballet and modern dancers.  Eventually she split her class into two, one for modern dancers and one for ballet dancers.  Choreographers such as William Forsythe and Ohad Naharin attended her class.

Agon (ballet): Agon (1957) is a ballet for twelve dancers, with music by Igor Stravinsky and choreography by George Balanchine.  Composition began in December 1953 but was interrupted the next year; work was resumed in 1956 and concluded on April 27, 1957; the music was first performed on June 17, 1957, in Los Angeles conducted by Robert Craft, while the first stage performance was given by the New York City Ballet on December 1, 1957, at the City Center of Music and Drama, New York .  The composition's long gestation period covers an interesting juncture in Stravinsky's composing career, in which he moved from a diatonic musical language to one based on twelve-tone technique; the music of the ballet thus demonstrates a unique symbiosis of musical idioms.  The ballet has no story, but consists of a series of dance movements in which various groups of dancers interact in pairs, trios, quartets, etc.  A number of the movements are based on 17th-century French court dances – saraband, galliard and bransle.  It was danced as part of City Ballet's 1982 Stravinsky Centennial Celebration.

Circus Polka: Igor Stravinsky and George Balanchine first met in 1925, as Balanchine, who just had started working for Sergei Diaghilev's "Ballets Russes", choreographed the ballet version of Stravinsky's "Le chant du rossignol".  This was the start of a long friendship and many years of collaboration, which continued after both emigrated to the United States in the 1930s.

The Firebird: The Firebird (French: "L'Oiseau de feu" ; Russian: Жар-птица , "Zhar-ptitsa") is a ballet by the Russian composer Igor Stravinsky, written for the 1910 Paris season of Sergei Diaghilev's Ballets Russes, with choreography by Michel Fokine.  The scenario by Alexandre Benois and Fokine is based on Russian fairy tales of the magical glowing bird that can be both a blessing and a curse to its owner.  Premiered in Paris on 25 June 1910, the work was an instant success with both audience and critics.

American Ballet: The American Ballet was the first professional ballet company George Balanchine created in the United States.  The company was founded with the help of Lincoln Kirstein and Edward Warburg, managed by Alexander Merovitch and populated by students of Kirstein and Balanchine's School of American Ballet.  Having failed to mount a tour, American Ballet began performing at the "Old Met."  After being allowed to stage only two dance performances ("Orfeo and Eurydice" in 1936 and an evening of dances choreographed to the music of Igor Stravinsky in 1937), Balanchine moved the company to Hollywood in 1938.  The company was restarted as the American Ballet Caravan and toured North and South America, although it too folded after several years.

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.

Ragtime (II): Ragtime (II) is the third ballet made by New York City Ballet's co-founder and balletmaster George Balanchine to Igor Stravinsky's "Ragtime for Eleven Instruments" (1918).  The premiere took place on July 15, 1966, at Philharmonic Hall, New York.  The first City Ballet performance was on January 17, 1967, at New York State Theater, Lincoln Center.  The previous ballets made to Stravinsky's "Ragtime" were "Ragtime (I)" for City Ballet in 1960 and one of a number of "informal little things" made in St. Petersburg in 1922.

Jeu de cartes (Balanchine): Jeu de cartes (En. , "Card Game") is a ballet in three "deals" by Igor Stravinsky composed in 1936–37, with libretto by the composer in collaboration with M. Malaieff (a friend of Stravinsky's eldest son ) and choreography by George Balanchine.  The ballet was premiered by the American Ballet at the Metropolitan Opera House, New York City on 27 April 1937, with the composer conducting.  The European premier was on 13 October 1937 at the Dresden Staatsoper.  The New York City Ballet premiere took place on 15 February 1951 under the title "The Card Game" at City Center of Music and Drama, New York.

Supporting paragraphs: Gelsey Kirkland The Firebird
Answer: The Firebird