Question: Which opera has more acts, Trial by Jury or Luisa Miller?
Context: Jury selection are many methods used to choose the people who will serve on a jury.  The jury pool, also known as the venire, is first selected from among the community using a reasonably random method.  Jury lists are compiled from voter registrations and driver license/state ID renewals.  From those lists, summons are mailed.  A panel of jurors is then assigned to a courtroom.  The prospective jurors are randomly selected to sit in the jury box.  At this stage they will be questioned in court by the judge and/or attorneys in the United States.  Depending on the jurisdiction, attorneys may have an opportunity to mount a "challenge for cause" argument or use one of a limited number of peremptory challenges.  In some jurisdictions that have capital punishment, the jury must be death-qualified to remove those who are opposed to the death penalty.  Jury selection and techniques for "voir dire" are taught to law students in trial advocacy courses.  However, attorneys sometimes use expert assistance in systematically choosing the jury, although other uses of jury research are becoming more common.  The jury selected is said to have been "empaneled". Luisa Miller is an opera in three acts by Giuseppe Verdi to an Italian libretto by Salvadore Cammarano, based on the play "Kabale und Liebe" ("Intrigue and Love") by the German dramatist Friedrich von Schiller. Richard Mohr (June 13, 1919 in Springfield, Ohio – November 23, 2002 in West Milford, New Jersey) was one of RCA Victor’s most prominent producers of classical and operatic music recordings from 1943 through 1977.  His producing credits included recording the casts of the world premieres of Samuel Barber's "Vanessa" and Gian Carlo Menotti's "Amahl and the Night Visitors," as well as the first LP recordings of "Ernani," "Luisa Miller" and "Lucrezia Borgia" and three versions each of "Rigoletto," "Aida," "La Traviata" and "Il Trovatore." Achille De Bassini (5 May 1819 – 3 July 1881) was an Italian baritone, particularly noted for his performances in Verdi's operas.  He created the roles of Francesco Foscari in "I due Foscari" (1844), Pasha Seid in "Il corsaro" (1848), Miller in "Luisa Miller" (1849) and Fra Melitone in "La forza del destino' (1862). Barbara Frittoli (born 19 April 1967) is an Italian operatic soprano who has sung leading roles in opera houses throughout Europe and in the United States.  She was born in Milan and graduated from the Milan Conservatory.  She made her Metropolitan Opera debut in 1995 as Micaela in "Carmen" and has gone on to sing in over 80 performances there including Donna Elvira in "Don Giovanni", Fiordiligi in "Così fan tutte", Angelica in "Suor Angelica", Desdemona in "Otello", the title role in "Luisa Miller", Amelia in "Simon Boccanegra", Vitellia in "La clemenza di Tito" and Alicia Ford in "Falstaff". Trial by Jury is a comic opera in one act, with music by Arthur Sullivan and libretto by W. S. Gilbert.  It was first produced on 25 March 1875, at London's Royalty Theatre, where it initially ran for 131 performances and was considered a hit, receiving critical praise and outrunning its popular companion piece, Jacques Offenbach's "La Périchole".  The story concerns a "breach of promise of marriage" lawsuit in which the judge and legal system are the objects of lighthearted satire.  Gilbert based the libretto of "Trial by Jury" on an operetta parody that he had written in 1868. In common law, a petit jury (or trial jury, sometimes petty jury) hears the evidence in a trial as presented by both the plaintiff (petitioner) and the defendant (respondent).  After hearing the evidence and often jury instructions from the judge, the group retires for deliberation, to consider a verdict.  The majority required for a verdict varies.  In some cases it must be unanimous, while in other jurisdictions it may be a majority or supermajority.  A jury that is unable to come to a verdict is referred to as a hung jury.  The size of the jury varies; in criminal cases involving serious felonies there are usually 12 jurors, although Scotland uses 15.  A number of countries that are not in the English common law tradition have quasi-juries on which lay judges or jurors and professional judges deliberate together regarding criminal cases.  However, the common law trial jury is the most common type of jury system. Margherita Roberti (b. 1925) is an American operatic soprano who had an active international career that spanned from 1948 to 1988.  Although she performed throughout the world, Roberti achieved her greatest success and popularity in Italy.  A dramatic soprano, Roberti drew particular acclaim for her portrayals of Verdi heroines.  Among her signature roles are Amelia in "Un ballo in maschera", Elisabetta in "Don Carlos", Elena in "I vespri siciliani", Odabella in "Attila", and the title role in "Luisa Miller".  In 1970 she was awarded Order of knight by the Italian government president Giuseppe Sargat Loretta Di Franco is an American operatic soprano who is chiefly known for her more than 900 performances at the Metropolitan Opera from 1961-1995.  Originally a member of the Met's opera chorus, she eventually was promoted to singing small comprimario roles beginning with one of the pages in Wagner's "Tannhäuser" and the peasant girl in "The Marriage of Figaro" in 1961.  She went on to win the Metropolitan Opera National Council Auditions in 1965 which led to her first substantial role, Chloe in "The Queen of Spades".  She continued to appear annually at the Met for the next 30 years, performing both leading and supporting roles.  Some of the parts she performed at the Met included Annina in "La traviata", both the Aunt and Barena in Janáček's "Jenůfa", Barbarina and Marcellina in "The Marriage of Figaro", Berta in "The Barber of Seville", Countess Ceprano in "Rigoletto", the Dew Fairy and the Sandman in "Hansel and Gretel", Feklusa in "Káťa Kabanová", the First Lady in "The Magic Flute", the Flower Seller in Britten's "Death in Venice", Frasquita in "Carmen", Gerhilde in "Die Walküre", Giannetta in "L'elisir d'amore", Helen in "Mourning Becomes Electra", Ines in "Il trovatore", Jouvenot in "Adriana Lecouvreur", Kate Pinkerton in "Madama Butterfly", Laura in "Luisa Miller", Lauretta in "Gianni Schichi", Lisa in "La sonnambula", Marianne in "Der Rosenkavalier", Marthe in "Faust", Musetta in "La bohème", Oscar in "Un ballo in maschera", Samaritana in "Francesca da Rimini", Woglinde in both "Das Rheingold" and "Götterdämmerung", Xenia in "Boris Godunov", Zerlina in "Don Giovanni", and title role in "Lucia di Lammermoor".  In 1991 she created the role of the Woman with Child in the world premiere of John Corigliano's "The Ghosts of Versailles". The Court of Session Act 1808 (also known as the Administration of Justice (Scotland) Act 1808) was an Act of the Parliament of the United Kingdom (citation "48 Geo III c. 151") which reformed Scotland's highest court, the Court of Session.  Reform of the Court of Session had been proposed as early as 1805 by the Whig government trying to impose a system based on that of England, especially the use of a civil jury trial.  That particular government fell before their reform bill was enacted.  In 1808, reform was pushed through by a Tory government.  The Court was split into two divisions.  Judgments of the new divisions could only be appealed to the House of Lords at the leave of the division, or in the case of a dispute between its judges.  Decrees of the Lords Ordinary could only be appealed to the House of Lords after being reviews by the Divisional judges.  The Act also established a commission to review the processes of the Court of Session, including the possibility of the introduction of jury trial and the creation of permanent Lords Ordinary.  The Commissioner's review led to two further Acts, the Court of Session Act 1810 and the Court of Session Act 1813.  These two Acts created the existing system of two divisions known as the Outer House and the Inner House.  Trial by jury came later with the Jury Trials (Scotland) Act 1815.
Answer: Luisa Miller