Question: In between Die schweigsame Frau and La straniera which one is an opera in three acts?

Context paragraphs:
Die Frau ohne Schatten: Die Frau ohne Schatten (The Woman without a Shadow), Op. 65, is an opera in three acts by Richard Strauss with a libretto by his long-time collaborator, the poet Hugo von Hofmannsthal.  It was written between 1911 and either 1915 or 1917.  When it premiered in Vienna on 10 October 1919, critics and audiences were unenthusiastic.  Many cited problems with Hofmannsthal's complicated and heavily symbolic libretto.  However, it is now a standard part of the operatic repertoire.

The Singing Lesson: The Singing Lesson is a chamber opera in three acts with music and libretto by Matthew Davidson.  Based on three short stories ("The Garden Party", "The Singing Lesson", and "The Doll’s House") by New Zealand author Katherine Mansfield, the opera is very unusual in several respects.  For instance, the three acts are not connected by a conventional plot, but instead by literary themes.  Those themes are class conflict (Acts 1 and 3) and a marriage of convenience (Act 2).  However, the overall literary theme for all three acts is delusion.

Mark Delavan: Mark Delavan is an American operatic bass-baritone.  He made his professional debut in 1986 at the San Francisco Opera in a small role in Giuseppe Verdi's "Don Carlos".  He spent the next three years performing in numerous comprimario roles with the company.  He has since returned to that opera house to sing Scarpia in Giacomo Puccini's "Tosca" (2004, with Carol Vaness in the title role) and Wotan in Richard Wagner's "The Ring Cycle" (2008, 2010, and 2011).  In 2001 he made his debut at the Metropolitan Opera as Amonasro in Verdi's "Aida" with Deborah Voigt in the title role, Luciano Pavarotti as Radamès, Olga Borodina as Amneris, and James Levine conducting.  He has since been heard at the Met as Alfio in Pietro Mascagni's "Cavalleria rusticana", Carlo Gérard in "Andrea Chénier", Count Tomsky in "The Queen of Spades", Don Carlo in Verdi's "La Forza del Destino", the Messenger in Richard Strauss' "Die Frau ohne Schatten", Scarpia, and the title roles in Verdi's "Nabucco", Verdi's "Rigoletto", and Verdi's "Simon Boccanegra".

Titon et l'Aurore: Titon et l'Aurore (English: "Tithonus and Aurora") is an opera in three acts and a prologue by the French composer Jean-Joseph de Mondonville which was first performed at the Académie royale de musique, Paris on 9 January 1753.  The authorship of the libretto has been subject to debate; Mondonville's contemporaries ascribed the prologue to Antoine Houdar de la Motte and the three acts of the opera to the Abbé de La Marre.  "Titon et l'Aurore" belongs to the genre known as the "pastorale héroïque".  The work played an important role in the so-called Querelle des Bouffons, a dispute over the relative merits of the French and Italian operatic traditions which dominated the intellectual life of Paris in the early 1750s.  The tremendous success of Mondonville's opera at its premiere was an important victory for the French camp (although their Italian rivals claimed that this was because they had been excluded from their seats by members of the army).  "Titon" was one of Mondonville's most popular works and went on to enjoy several revivals during his lifetime.

Die geschiedene Frau: Die geschiedene Frau ("The Divorcée"), is an operetta in three acts by Leo Fall with a libretto by Victor Léon, after Victorien Sardou's "Divorçons!" .  Conducted by the composer, It opened to considerable success at the Carltheater in Vienna on 23 December 1908 with Hubert Marischka as Karel.

Ellen Shade: Ellen Shade is an American operatic soprano from New York.  Her repertoire includes the Kaiserin in "Die Frau ohne Schatten", the Marschallin "Der Rosenkavalier", Chrysothemis "Elektra", Ariadne "Ariadne auf Naxos", Arabella, Katya Kabanova, Aida, Desdemona "Otello", Amelia "Un ballo in Maschera", Amelia "Simon Boccanegra", Sieglinde "Die Walkure", Elsa "Lohengrin", Elisabeth "Tannhauser", Eva "Die Meistersinger von Nurnberg".  In Europe she has appeared at La Scala Milan, the Royal Opera House, Covent Garden, the Bastille and the Chatelet in Paris and in Vienna, Salzburg Festival, Berlin, Hamburg, Frankfurt [Article Reference], Stuttgart, Amsterdam, Brussels, Geneva and Athens.  In North America she has performed with virtually all the major opera companies, including the Metropolitan Opera New York, Chicago, San Francisco, Los Angeles, Houston, Dallas, Seattle, Santa Fe, and the Canadian Opera in Toronto.

Die Kluge: Die Kluge.  Die Geschichte von dem König und der klugen Frau ("The Wise [Girl].  The Story of the King and the Wise Woman") is an opera in 12 scenes written by Carl Orff.  It premiered in Frankfurt, Germany, on 20 February 1943.  Orff referred to this opera as a "Märchenoper " (fairy tale opera).  The composer also wrote the libretto, based on "Die Kluge Bauerntochter" ("The Peasant's Wise Daughter") from the Grimm's Fairy Tales.  A performance lasts for about 90 minutes and is often paired with Orff's "Der Mond".

La straniera: La straniera ("The Foreign Woman") is an opera in two acts with music by Vincenzo Bellini to an Italian libretto by Felice Romani, based on the novel "L'Étrangère" (2 vols, 1825) by Charles-Victor Prévot, vicomte d'Arlincourt, although writer Herbert Weinstock also adds that it is "more likely [based on] a dramatization of [that novel] in Italian by Giovan Carlo, barone di Cosenza" since he then quotes a letter from Bellini to his friend Francesco Florimo in which he says that Romani "certainly will not follow the play" [suggesting then that they were aware of its existence.]

Die Jagd: Die Jagd ("The Hunt") is an opera by the German composer Johann Adam Hiller.  It takes the form of a "Singspiel" in three acts.  The libretto by Christian Felix Weiße is based on the plays "La partie de chasse de Henri IV " by Charles Collé, "The King and the Miller of Mansfield" by Robert Dodsley, and the "opéra comique" by Michel-Jean Sedaine (originally set by Monsigny).  The opera was first performed at the Schlosstheater, Weimar on 29 January 1770.  "Die Jagd" is considered one of the most important early "Singspiele".  It was admired by Goethe and Wagner.

Die schweigsame Frau: Die schweigsame Frau ("The Silent Woman"), Op. 80, is a 1935 opera in three acts by Richard Strauss with libretto by Stefan Zweig after Ben Jonson's "Epicoene, or the Silent Woman".

Supporting paragraphs: Die schweigsame Frau La straniera
Answer: Die schweigsame Frau