Question: What is the birth date of the composer who created the opera the Consul? 

full_context: Document 1: Pietro Mascagni: Pietro Antonio Stefano Mascagni (] ; 7 December 1863 – 2 August 1945) was an Italian composer most noted for his operas. His 1890 masterpiece "Cavalleria Rusticana" caused one of the greatest sensations in opera history and single-handedly ushered in the "Verismo" movement in Italian dramatic music. While it was often held that Mascagni, like Leoncavallo, was a "one-opera man" who could never repeat his first success, "L'amico Fritz" and "Iris" have remained in the repertoire in Europe (especially Italy) since their premieres. Mascagni said that at one point, "Iris" was performed in Italy more often than "Cavalleria" (cf. Stivender).
Document 2: Help, Help, the Globolinks!: Help, Help, the Globolinks! is an opera in four scenes by Gian Carlo Menotti with an original English libretto by the composer. It was commissioned by the Hamburg State Opera and first performed as "Hilfe, Hilfe, die Globolinks!" in a German translation by on December 21, 1968 in a double bill with Menotti's "Amahl and the Night Visitors". The opera had its English language premiere on August 1, 1969 in the United States at the Santa Fe Opera in a double bill with Igor Stravinsky's "The Nightingale". Both premiere productions were directed by the composer. Many of the cast members from the Santa Fe production reprised their roles for the work's New York debut at the New York City Opera in December 1969.
Document 3: The Telephone: The Telephone, or L'Amour à trois is an English-language comic opera in one act by Gian Carlo Menotti, both words and music. It was written for production by the Ballet Society and was first presented on a double bill with Menotti's "The Medium" at the Heckscher Theater, New York City, February 18–20, 1947. The Broadway production took place on May 1, 1947, at the Ethel Barrymore Theatre. The Metropolitan Opera presented it once, on July 31, 1965.
Document 4: The Visitors (opera): The Visitors is an opera in three acts and a prologue composed by Carlos Chávez to an English libretto by the American poet Chester Kallman. The work was Chávez's only opera. Its first version, with the title "Panfilo and Lauretta", premiered in New York City in 1957. The final version with the title "The Visitors" was premiered in Guanajuato, Mexico in 1999, twenty years after the composer's death. The story is set in 14th century Tuscany during the time of the Black Death. The libretto (like those for "Pagliacci" and "Ariadne auf Naxos") uses the device of a play within a play to reflect and intensify the relationships between the protagonists, who in this case are loosely based on characters in "The Decameron".
Document 5: Gian Carlo Menotti: Gian Carlo Menotti (] ; July 7, 1911 – February 1, 2007) was an Italian-American composer and librettist. Although he often referred to himself as an American composer, he kept his Italian citizenship. He wrote the classic Christmas opera "Amahl and the Night Visitors", along with over two dozen other operas intended to appeal to popular taste.
Document 6: Turandot: Turandot ( ; ] ; ) is an opera in three acts by Giacomo Puccini, completed by Franco Alfano, and set to a libretto in Italian by Giuseppe Adami and Renato Simoni.
Document 7: The Last Savage: The Last Savage is an opera in three acts by composer Gian Carlo Menotti. Menotti wrote his own libretto, originally in the Italian language ("L'ultimo selvaggio"). The opera was translated into French ("Le dernier sauvage") by Jean-Pierre Marty for the work's first (private) performance at the Opéra-Comique in Paris on 21 October 1963, followed the next day by the public premiere. George Mead translated the work into English for the opera's American premiere at the Metropolitan Opera the following year.
Document 8: Umberto Giordano: Umberto Menotti Maria Giordano (28 August 186712 November 1948) was an Italian composer, mainly of operas.
Document 9: Giacomo Puccini: Giacomo Antonio Domenico Michele Secondo Maria Puccini (] ; 22 December 1858 29 November 1924) was an Italian opera composer who has been called "the greatest composer of Italian opera after Verdi".
Document 10: Labyrinth (opera): Labyrinth is an opera in one act by composer Gian Carlo Menotti. The work was commissioned for television by the NBC Opera Theatre and uses an English language libretto by the composer. Unlike Menotti's previous television operas, such as "Amahl and the Night Visitors", this opera was written with no intention of being moved to live stage performance later. Menotti intended for this work to utilize the special effects unique to television which could not be recreated in live theatre. As a result, NBC's television production of the opera is the only performance the work has received. At its premiere in March 1963 the opera was mainly criticized by the press for its trite use of allegory and music which rejected the avante garde in favour of romanticism. Critic Harold C. Schonberg stated in his review in "The New York Times" that, "Menotti falls back on the procedures he has always used: the scraps of canonic imitation, the stretches of parlando, the Puccini like melodies, the banal waltz themes... [It] ended up an allegory that had all the dimension of a Mobius strip: an example of slick television and cinema of the 1960s wedded pretty much to music of the 1890s... On the whole "Labyrinth" is one of the thinnest musical concoctions Menotti has ever put together.
Document 11: The Consul: The Consul is an opera in three acts with music and libretto by Gian Carlo Menotti, his first full-length opera.
Document 12: Martin's Lie: Martin's Lie is a chamber opera in one act with music and an English language libretto by Gian Carlo Menotti. Commissioned by CBS, it was Menotti's third opera for television after "Amahl and the Night Visitors" and "Labyrinth". Although not initially conceived as a work for the stage, the opera premiered in a live theatrical performance on 3 June 1964 at the Bristol Cathedral for the opening of the 17th annual Bath International Music Festival. The opera was subsequently filmed with the same cast for television under the direction of Kirk Browning. The production used sets and costumes by designer Anthony Powell, and was broadcast nationally by CBS for the opera's United States premiere on 30 May 1965.
Document 13: Amelia Goes to the Ball: Amelia al ballo ("Amelia Goes to the Ball") is a one-act "opera buffa" by Gian Carlo Menotti, who set his own Italian libretto. Composed during 1936 when Menotti was in his mid-twenties, it was the composer's first mature opera and first critical success. The opera recounts a series of farcical events as a young Italian socialite overcomes obstacles to her attendance at the first ball of the season.
Document 14: The Medium: The Medium is a short (one-hour-long) two-act dramatic opera with words and music by Gian Carlo Menotti. Commissioned by Columbia University, its first performance was there on 8 May 1946. The opera's first professional production was presented on a double bill with Menotti's "The Telephone" at the Heckscher Theater, New York City, February 18–20, 1947 by the Ballet Society. The Broadway production took place on May 1, 1947, at the Ethel Barrymore Theater with the same cast.
Document 15: The Hero (opera): The Hero is a two-act opera by Italian-American composer Gian Carlo Menotti. Commissioned by the Opera Company of Philadelphia, the work premiered at the Philadelphia Academy of Music on June 1, 1976. At this point of his career, Menotti's style of composition, which rejected the avant-garde, was out of favor with the classical music world. "Time" stated in its review of the opera, "Most of Menotti's music is passable Puccini: melodic, easy to take—and totally beside the point in 1976."
ground_truth: Gian Carlo Menotti (] ; July 7, 1911 – February 1, 2007)