Question: The Alliance Theatre staged its first production, a semi-opera with how many acts, at the Alliance in 1968?

full_context: Document 1: Dido and Aeneas: Dido and Aeneas (Z. 626) is an opera in a prologue and three acts, written by the English Baroque composer Henry Purcell with a libretto by Nahum Tate. The dates of the composition and first performance of the opera are uncertain. It was composed no later than July 1688, and had been performed at Josias Priest's girls' school in London by the end of 1689. Some scholars argue for a date of composition as early as 1683. The story is based on Book IV of Virgil's "Aeneid". It recounts the love of Dido, Queen of Carthage, for the Trojan hero Aeneas, and her despair when he abandons her. A monumental work in Baroque opera, "Dido and Aeneas" is remembered as one of Purcell's foremost theatrical works. It was also Purcell's only true opera, as well as his only all-sung dramatic work. One of the earliest known English operas, it owes much to John Blow's "Venus and Adonis", both in structure and in overall effect. The influence of Cavalli's opera "Didone" is also apparent.
Document 2: The Fairy-Queen: The Fairy-Queen (1692; Purcell catalogue number Z.629) is a masque or semi-opera by Henry Purcell; a "Restoration spectacular". The libretto is an anonymous adaptation of William Shakespeare's wedding comedy "A Midsummer Night's Dream". First performed in 1692, "The Fairy-Queen" was composed three years before Purcell's death at the age of 35. Following his death, the score was lost and only rediscovered early in the twentieth century.
Document 3: King Arthur and King Cornwall: "King Arthur and King Cornwall" is an English ballad surviving in fragmentary form in the 17th-century Percy Folio manuscript. An Arthurian story, it was collected by Francis James Child as Child Ballad 30. Unlike other Child Ballads, but like the Arthurian "The Boy and the Mantle" and "The Marriage of Sir Gawain", it is not a folk ballad but a professional minstrel's song. It is notable for containing the Green Knight, a character known from the medieval poems "The Greene Knight" and the more famous "Sir Gawain and the Green Knight"; he appears as "Bredbeddle", the character's name in "The Greene Knight".
Document 4: Purcell Operatic Society: The Purcell Operatic Society was a short-lived but influential London opera company devoted to the production of stage works by Henry Purcell and his contemporaries. It was founded in 1899 by the composer Martin Shaw and folded in 1902. Its stage director and production designer was Gordon Craig whose productions for the company marked the beginning of his career as a theatre practitioner. Their debut production of Purcell's opera "Dido and Aeneas" in 1900 was one of the earliest staged performances of the work in modern times.
Document 5: Workhouse Theatre Company: Workhouse Theatre Company (WTC) is the only independent theatre company residing and producing in north Minneapolis. Based in the Camden neighborhoods of Minneapolis, WTC was established by Artistic Director Jeff Redman in 2004, under the name Camden Civic Theatre. The name was changed to Workhouse Theatre Company in 2006, although the theatre's dedication to Camden remains the same and WTC still maintains the title of the first and only independent theatre company based in the Camden community.
Document 6: Kenny Leon's True Colors Theatre Company: Kenny Leon's True Colors Theatre Company is a 501(c)3 non-profit theatre company in Atlanta, GA co-founded by Tony-winning Broadway director Kenny Leon and Jane Bishop in 2002. True Colors Theatre Company had their inaugural season in 2003-2004 under the leadership of co-founder and Artistic Director Kenny Leon. True Colors Theatre Company produces world premiere plays by diverse playwrights as well as a commitment to preserving African-American classics. There is no permanent theater space for the company, they have dubbed themselves a "moveable feast", presenting plays at the Southwest Arts Center, Theatrical Outfits Balzer Theatre, Porter Sanford III Performing Arts Center and the Rialto Center.
Document 7: A Midsummer Night's Dream (opera): A Midsummer Night's Dream, Op. 64, is an opera with music by Benjamin Britten and set to a libretto adapted by the composer and Peter Pears from William Shakespeare's play, "A Midsummer Night's Dream". It was premiered on 11 June 1960 at the Aldeburgh Festival, conducted by the composer and with set and costume designs by Carl Toms. Stylistically, the work is typical of Britten, with a highly individual sound-world – not strikingly dissonant or atonal, but replete with subtly atmospheric harmonies and tone painting. The role of Oberon was composed for the countertenor Alfred Deller. Atypically for Britten, the opera did not include a leading role for his partner Pears, who instead was given the comic drag role of Flute/Thisbe.
Document 8: Alliance Theatre: The Alliance Theatre is a theater company in Atlanta, Georgia, based at the Alliance Theatre, part of the Robert W. Woodruff Arts Center, and is the winner of the 2007 Regional Theatre Tony Award. The company, originally the Atlanta Municipal Theatre, staged its first production ("King Arthur") at the Alliance in 1968. The following year the company became the Alliance Theatre Company.
Document 9: Woodruff Arts Center: Woodruff Arts Center is a visual and performing arts center located in Atlanta, Georgia. The center houses three not-for-profit arts divisions on one campus. Opened in 1968, the Woodruff Arts Center is home to the Alliance Theatre, the Atlanta Symphony Orchestra, and the High Museum of Art.
Document 10: Alliance Jiu Jitsu: Alliance (pronounced "ah-lee-AHN-say" from the Brazilian origin, but "uh-LAHY-uhns" in the American/English form) is one of the most prominent Brazilian Jiu-Jitsu associations and the current defending World team champion, having won the titles at the World Championships from 2008-2016. They also won the World Championships back to back in 1998 and 1999. Alliance was founded by Romero "Jacare" Cavalcanti and his students: Fabio Gurgel, Alexandre Paiva, and Fernando Gurgel. Alliance Global headquarters is in Atlanta, Georgia at the Alliance Martial Arts Academy, where "Jacare" is the head instructor. Fabio Gurgel, also known as the "General", is the co-leader of Alliance and the head instructor at Alliance Sao Paulo (Sao Paulo, Brazil). Alexandre "Gigi" Paiva heads the third main Alliance academy in Rio de Janeiro, Brazil.
Document 11: The Arab-Hebrew Theater: The Arab-Hebrew Theater is a multilingual theater located in the Old Saraya House in the Old City of Jaffa. It serves as a stage for two theater companies working independently and together in two languages: Hebrew and Arabic. The Hebrew company is "Teatron Mekomi (Local Theater)", which was established in 1990 by Yigal Ezrati and Gabi Eldor, and the Arab company is "Al-Saraya", which was established in 1998. The theater is partially funded by the Ministry of Culture and the Tel Aviv Municipality. The theater has three arts directors: Mohammad Bakri, Yigal Ezrati, and Gabi Eldor.
Document 12: Henry Purcell: Henry Purcell ( or ; c. 10 September 1659 – 21 November 1695) was an English composer. Although incorporating Italian and French stylistic elements into his compositions, Purcell's legacy was a uniquely English form of Baroque music. He is generally considered to be one of the greatest English composers; no other native-born English composer approached his fame until Edward Elgar, Ralph Vaughan Williams, William Walton and Benjamin Britten in the 20th century.
Document 13: Artus-Excalibur: Artus - Excalibur is a musical loosely based on the legends of the 5th/6th Century British monarch, King Arthur and his fabled sword, Excalibur. The score is by Frank Wildhorn, with lyrics by Robin Lerner and book by Ivan Menchell. Arrangements and orchestrations by Koen Schoots.
Document 14: King Arthur (opera): King Arthur, or The British Worthy (Z. 628), is a semi-opera in five acts with music by Henry Purcell and a
Document 15: American Theater Hall of Fame: The American Theater Hall of Fame in New York City was founded in 1972. Earl Blackwell was the first head of the organization's Executive Committee. In an announcement in 1972, he said that the new "Theater Hall of Fame" would be located in the Uris Theatre (then under construction, now the Gershwin). James M. Nederlander and Gerard Oestreicher, who leased the theatre, donated the space for the Hall of Fame; Arnold Weissberger was another founder. Blackwell noted that the names of the first honorees would "be embossed in bronze-gold lettering on the theater's entrance walls flanking its grand staircase and escalator." The first group of inductees was announced in October 1972.
ground_truth: five