Question: Are Cardillac and La donna del lago both operas?

full_context: Document 1: Paul Hindemith: Paul Hindemith ( ) (16 November 1895 – 28 December 1963) was a prolific German composer, violist, violinist, teacher and conductor. Notable compositions include his song cycle "Das Marienleben" (1923), "Der Schwanendreher" for viola and orchestra (1935), and opera "Mathis der Maler" (1938). Hindemith's most popular work, both on record and in the concert hall, is likely the "Symphonic Metamorphosis of Themes by Carl Maria von Weber", written in 1943.
Document 2: Mörder, Hoffnung der Frauen: Mörder, Hoffnung der Frauen ("Murderer, Hope of Women") is an opera in one act by Paul Hindemith, written in 1919 on a German libretto by Oskar Kokoschka which he based on his play of 1907. The opera was the first in a triptych of expressionist one-act operas, the others being "Das Nusch-Nuschi", and "Sancta Susanna". They were the first operas written by Hindemith. The first two were premiered together in Stuttgart on 4 June 1921, all three were performed at the Frankfurt Opera in 1922.
Document 3: La Cenerentola: La Cenerentola, ossia La bontà in trionfo (Cinderella, or Goodness Triumphant) is an operatic "dramma giocoso" in two acts by Gioachino Rossini. The libretto was written by Jacopo Ferretti, based on the fairy tale "Cendrillon" by Charles Perrault. The opera was first performed in Rome's Teatro Valle on 25 January 1817.
Document 4: Amor und Psyche: Amor und Psyche is an opera ("singspiel") in four acts composed by Ludwig Abeille to a German "libretto" by Franz Carl Hiemer (1768–1822). Based on the story of Cupid and Psyche, the opera premiered on January 18, 1800 at the Hoftheater (Herzöglichestheater) in Stuttgart. "Amor und Psyche" was popular in Germany in its day and a version of the score for voice and piano was published by Breitkopf & Härtel. Franz Carl Hiemer went on to write the libretto for Abeille's third opera, "Peter und Ännchen" (1809) as well as the libretti for Carl Maria von Weber's operas "Silvana" and "Abu Hassan".
Document 5: Blond Eckbert: Blond Eckbert is an opera by Scottish composer Judith Weir. The composer wrote the English-language libretto herself, basing it on the cryptic supernatural short story "Der blonde Eckbert" by the German Romantic writer Ludwig Tieck. Weir completed the original two act version of the opera in 1993, making "Blond Eckbert" her third full-length work in the genre. Like its predecessors, it was received well by the critics. She later produced a one act "pocket" version of the work. This uses chamber forces rather than the full orchestra of the two act version and omits the chorus. The pocket version receives frequent performances, especially in Germany and Austria, while the full version is available in a recording featuring the original cast.
Document 6: The Possessed (1965 film): The Possessed (Italian: "La donna del lago" , also known as "The Lady of the Lake") is a 1965 Italian mystery film written and directed by Luigi Bazzoni and Franco Rossellini and starring Peter Baldwin, Virna Lisi and Philippe Leroy. It is based on the novel by Giovanni Comisso.
Document 7: Ivanhoé: Ivanhoé is an 1826 pastiche opera in three acts with music by Gioachino Rossini to a French-language libretto by Émile Deschamps and Gabriel-Gustave de Wailly, after Walter Scott's novel of the same name. The music was adapted, with the composer's permission, by the music-publisher Antonio Pacini from Rossini's operas, namely "Semiramide", "La Cenerentola", "La gazza ladra", and "Tancredi" in order to introduce his music to Paris. An examination of the score shows that Pacini also used music from "Bianca e Faliero", "Armida", "Maometto II", "Aureliano in Palmira", "Sigismondo", "Torvaldo e Dorliska", "Mosè in Egitto" and an amount of newly composed music including fanfares and the gallop that was later to become famous from its inclusion in "Guglielmo Tell". The work was premiered on 15 September 1826, at the Odéon Theatre.
Document 8: La donna del lago: La donna del lago (The Lady of the Lake) is an opera composed by Gioachino Rossini with a libretto by Andrea Leone Tottola (whose verses are described as "limpid" by one critic) based on the French translation of "The Lady of the Lake", a narrative poem written in 1810 by Sir Walter Scott, whose work continued to popularize the image of the romantic highlands. Scott's basic story has been noted as coming from "the hint of an incident stemming from the frequent custom of James V, the King of Scotland, of walking through the kingdom in disguise".
Document 9: The Bride of Lammermoor: The Bride of Lammermoor is an historical novel by Sir Walter Scott, published in 1819. The novel is set in the Lammermuir Hills of south-east Scotland, and tells of a tragic love affair between young Lucy Ashton and her family's enemy Edgar Ravenswood. Scott indicated the plot was based on an actual incident. "The Bride of Lammermoor" and "A Legend of Montrose" were published together as the third of Scott's "Tales of My Landlord" series. As with all the Waverley Novels, "The Bride of Lammermuir" was published anonymously. The novel claims that the story was an oral tradition, collected by one "Peter Pattieson", and subsequently published by "Jedediah Cleishbotham". The 1830 "Waverley edition" includes an introduction by Scott, discussing his actual sources. The later edition also changes the date of the events: the first edition sets the story in the 17th century; the 1830 edition sets it in the reign of Queen Anne, after the 1707 Acts of Union which joined Scotland and England. The story is the basis for Donizetti's 1835 opera "Lucia di Lammermoor".
Document 10: Giuditta: Giuditta is an operatic "musikalische Komödie " (German for "musical comedy") in five scenes, with music by Franz Lehár and a German libretto, by and Fritz Löhner-Beda. Scored for a large orchestra, it was Lehár's last and most ambitious work, written on a larger scale than his previous operettas. Of all his works it is the one which most approaches true opera, the resemblances between the story and that of Bizet's "Carmen" and its unhappy ending heightening the resonances. Perhaps the best known song in the work is the soprano aria "Meine Lippen, sie küssen so heiß ", sung by Giuditta in the fourth scene. Another strong influence, especially for the North African setting, was the 1930 movie "Morocco", starring Marlene Dietrich and Gary Cooper in very similar central roles, she being a singer-dancer, he being a soldier.
Document 11: Pique Dame (Suppé): Pique Dame ("The Queen of Spades") is an operetta in two acts by Franz von Suppé to a German-language libretto very loosely based on Alexander Pushkin's short story "The Queen of Spades". The author of the libretto is unknown. "Pique Dame" was a revised version of Suppé's 1862 operetta "Die Kartenschlägerin" ("The Fortune Teller") and premiered in June 1864 at the Thalia Theater in Graz. The work is primarily known today for its overture which remains a popular concert piece.
Document 12: Robert Bruce (opera): Robert Bruce is an 1846 pastiche opera in three acts, with music by Gioachino Rossini and Louis Niedermeyer to a French-language libretto by Alphonse Royer and Gustave Vaëz, after Walter Scott's "History of Scotland". The music was stitched together by Niedermeyer, with the composer's permission, with pieces from "La donna del lago", "Zelmira", and other Rossini operas. The work was premiered on 30 December 1846, by the Paris Opera at the Salle Le Peletier. The audience may not have noticed, but the orchestra included for the first time a recently invented instrument, which later came to be known as the saxophone.
Document 13: Lucia di Lammermoor: Lucia di Lammermoor is a "dramma tragico" (tragic opera) in three acts by Gaetano Donizetti. Salvadore Cammarano wrote the Italian-language libretto loosely based upon Sir Walter Scott's historical novel "The Bride of Lammermoor".
Document 14: Cardillac: Cardillac is an opera by Paul Hindemith in three acts and four scenes. wrote the libretto based on characters from the short story "Das Fräulein von Scuderi" by E.T.A. Hoffmann.
Document 15: Salome (opera): Salome, Op. 54, is an opera in one act by Richard Strauss to a German libretto by the composer, based on Hedwig Lachmann's German translation of the French play "Salomé" by Oscar Wilde. Strauss dedicated the opera to his friend Sir Edgar Speyer.
ground_truth: yes