Question: As a child, Olga Peretyatko sand in the children's choir of a theatre that opened in what year?

Context paragraphs:
Mariinsky Theatre: The Mariinsky Theatre (Russian: Мариинский театр , Mariinskiy Teatr, also spelled Maryinsky or Mariyinsky) is a historic theatre of opera and ballet in Saint Petersburg, Russia.  Opened in 1860, it became the preeminent music theatre of late 19th century Russia, where many of the stage masterpieces of Tchaikovsky, Mussorgsky, and Rimsky-Korsakov received their premieres.  Through most of the Soviet era, it was known as the Kirov Theatre.  Today, the Mariinsky Theatre is home to the Mariinsky Ballet, Mariinsky Opera and Mariinsky Orchestra.  Since Yuri Temirkanov's retirement in 1988, the conductor Valery Gergiev has served as the theatre's general director.

Orlando Gough: Orlando Gough ( ; born 1953, Brighton, Sussex) is a British composer, educated at Oxford, and noted for projects written for ballet, contemporary dance and theatre.  Collaborators have included Siobhan Davies, Alain Platel, Shobana Jeyasingh and Ashley Page of The Royal Ballet.  He is artistic director of The Shout, which he founded in 1998 with Richard Chew.  The choir won the Time Out Award for Classical Artist of the Year in 2001.  He released one album titled "Message from the Border" that was released on Catalyst/BMG Records.  His 2001 commission from Fretwork, called 'Birds on Fire' was recorded by them for Harmonia Mundi under the same title and was released in 2008.  He composed the music for the closing ceremony of the 2008 European Capital of Culture, Stavanger.  Members of the choir include Carol Grimes, Melanie Pappenheim and Manickam Yogeswaran.  In 2010 the Turner Contemporary commissioned Gough to compose a work for its opening ceremonies: "The Red Volcano" - for community choir and orchestra, had its World Premiere in April 2011 conducted by Anthony Castro.

Olga Peretyatko: Olga Peretyatko (Russian: Ольга Перетятько ; born 21 May 1980 in Leningrad, now Saint Petersburg) is a Russian operatic soprano.  As a child Peretyatko sang in the children's choir of the Mariinsky Theatre.  As a student of the Hamburg Opera Studio she received the second prize at Operalia Competition (2007), an event sponsored by tenor Plácido Domingo.

Olga de Amaral: Olga de Amaral was born as Olga Ceballos Velez in Bogotá, Cundinamarca, Colombia to parents from the Antioquia region of Colombia.  She was raised in a traditional religious family with 5 sisters and 2 brothers.  She grew up in a traditional neighbourhood in Bogotá in a warm, safe family atmosphere, maintaining a special relationship with her loving and caring mother.  Upon graduating from high school, in the years 1951-52 she got a degree in Architectural Design at the Colegio Mayor de Cundinamarca in Bogotá.  After graduation, the future textile artist worked for a year as a director of the Architectural Drawing Faculty at the same school.  In 1954, de Amaral went to the United States to study English in New York at the Columbia University.  She then moved and studied fiber art at the Cranbrook Academy of Art in Bloomfield Hills, Michigan, USA (1954–55).  The artist cherishes that period of her education and considers it crucial for her later artistic development: "In Cranbrook, the textile workshop had eight looms placed against the windows: one of them, in the corner, would be my home for a year.  There, I lived my most intimate moments of solitude; there was born my certainty about color; its strength; I felt as if I loved color as though it were something tangible.  I also learned to speak in color.  I remember with nostalgia that experience in which souls touched hands".  At Cranbrook de Amaral met Jim Amaral and they became close friends.  In 1955, after a year in Cranbrook, she returned to Colombia and started to make decorative textiles on commission for her architect friends.  Meanwhile, Jim Amaral was in the U.S. Navy, on a base in the Philippines.  In 1956, Jim visited Colombia to see Olga, initially for a few weeks.  Shortly after, Jim Amaral and Olga Ceballos Velez married and settled in Bogotá.  They started a family (children Diego and Andrea) and a workshop of handwoven textiles.  During that period, Jack Lenor Larsen visited Colombia and the Amaral's workshop.  He expressed interest in Olga's tapestries.  Their professional and artistic relationship became crucial in projection of her work internationally in the world of contemporary tapestry.  In 1965 de Amaral founded and taught at the Textile Department at the Universidad de los Andes (University of the Andes) in Bogotá.  In 1966-1967 the Amaral family lived in New York.  There Olga de Amaral met Eileen Vanderbilt from the World Crafts Council and became its representative for Colombia.  With Jack Lenor Larsen's collaboration, Olga de Amaral displayed her tapestries in New York (solo exhibition in Jack Lenor Larsen’s New York showroom in 1967), taught at Penland School of Crafts in North Carolina and in Haystack Mountain School of Crafts in Maine.  After returning to Colombia, the Amarals travelled to Popayán and Tierradentro region with its must-see San Agustín.  Later Olga visited Peru as the WCC representative.  On a rapid visit to Ireland to participate in a WCC conference, Olga met Lucie Rie, a British ceramist who inspired her to incorporate gold into the tapestries.  At the beginning of the seventies, the Amarals moved to Barcelona and then to Paris.  They visited Greece, Italy, Holland, Belgium, Switzerland, Sweden, and England.  They made contacts with the centres of European art.  They lived for a time in Europe, then returned to Bogotá, visited different areas of Colombia, and then went back to France, amid exhibits, work, and new friendships.  Another important journey for the artist was her travel to Japan.  Nowadays Olga de Amaral lives and works in Bogotá, Colombia.

Watoto Child Care Ministries: Started in 1994, Watoto Child Care Ministries is a branch of the Watoto Church in Uganda that builds villages with schools, churches, medical centers, and homes and populates them with new families built from orphans and widows.  Currently there are three villages: Bbira and Suubi near Kampala and Laminadera outside Gulu.  Other projects being undertaken by Watoto Child Care Ministries include baby homes, vocational training, and farms to support the villages.  Watoto Child Care Ministries is also the organization that runs the Watoto Children's Choir which tours internationally every year.  Watoto aims to "raise the next generation of African leaders".

Penobscot Theatre Company: Penobscot Theatre Company (PTC), located in Bangor, Maine, is America's Northeastern-most professional theatre company.  It operates year-round in the historic Bangor Opera House, producing theatre works and programs.  Plays and musicals both new and classic comprise PTC's mainstage season.  Beyond the mainstage, Penobscot Theatre's educational and outreach programming is the largest in the state, serving more than 7,000 Maine students through school-based workshops, student matinees, extracurricular offerings, internships, and apprenticeships.  PTC's Dramatic Academy offers children and young adults professional training in all aspects of the performing arts, including acting, voice, movement, improvisation, straight play and musical production, and show choir; and workshops and classes for adults.  The theatre regularly collaborates with area residents, businesses, and non-profits to offer post-show talk-backs and other programs that complement the theatre's work.

Sand Springs, Montana: Sand Springs is an unincorporated community in southwestern Garfield County, Montana, United States.  It lies along Highway 200 southwest of the town of Jordan, the county seat of Garfield County.  Its elevation is 3,192 feet (973 m).  Although Sand Springs is unincorporated, it has a post office with the ZIP code of 59077, which opened on 1911-03-01.  Sand Springs is over 100 years old, founded at the turn of the 20th century by sheep, cattle, and horse ranchers.  It has a population of about 90 people.  It gets its name from the wide expanse of sandy soil and life-giving springs in the area.  Most people currently make a living as ranchers and farmers.  The farmable acres in this area are some of the richest, most productive soils in the county; however much of the land is suitable only for grazing due to the terrain.  There is a family-owned reservoir that is open to the public for fishing.  The economy is supported by recreation -there is excellent hunting, fishing, and camping opportunities available all year round.  Just check in at the Fish, Wildlife, and Parks station located in the center of town.  There is a General Store attached to the Post Office.  It has lunch available that you can eat at a picnic table.  People are allowed to camp behind it.  There is a church that has a service every other Sunday.  It is the location of the annual Christmas program put on by the school.  Sand Springs School is a one-room schoolhouse that serves kindergarten through eighth grade.

State Theatre (Eau Claire, Wisconsin): The State Theatre is a nonprofit venue for the performing arts and entertainment, located in downtown Eau Claire, Wisconsin with seating for 1100 people.  It was first opened as a vaudeville theatre in 1926, then several years later converted to a movie house that closed in 1982.  In 1984 the Theatre was donated to a group of arts-minded community members called the Eau Claire Regional Arts Council to create a center for artistic expression.  After a significant renovation it reopened the doors in 1986.  It is now used by a number of local performing arts organizations including: Chippewa Valley Symphony, Chippewa Valley Theatre Guild, Chippewa Valley Youth Choirs, Eau Claire Children's Theatre, Valley Gospel Choir and UW - Eau Claire.

St Winifred's School Choir: St Winifred's School Choir, from St Winifred's Roman Catholic Primary School in Stockport, England, was a choir of children whose single in 1980 became that year's British Christmas number one single.  Entitled "There's No One Quite Like Grandma", written for the 80th birthday of Queen Elizabeth, the Queen Mother in 1980 by Gordon Lorenz, it became that year's British Christmas number one single.  It sold one million copies, most of them Christmas presents from grandchildren.  It spent two weeks at number one, and 11 weeks in the UK Singles Chart in total.  Dawn Ralph provided the lead vocal of the song composed by award-winning record producer Gordon Lorenz.  During the late 1970s and the 1980s, Miss Terri Foley trained and conducted the choir, who gave the Music for Pleasure record label its only UK No. 1 single.

Dune short stories: A series of Dune short stories have been written that relate to the "Dune" novels by Frank Herbert, Brian Herbert and Kevin J. Anderson.  Some of these stories were originally available for download from the official "Dune" website, released in a promotional capacity in conjunction with the Brian Herbert/Kevin J. Anderson novels.  "Dune: A Whisper of Caladan Seas'," "Dune: Hunting Harkonnens," "Dune: Whipping Mek" and "Dune: The Faces of a Martyr" were later published as part of the collection "The Road to Dune" (not to be confused with the Frank Herbert short work of the same name) released in September 2005.  "Dune: Sea Child" was published in "Elemental", a 2006 benefit anthology for children who survived the 2004 Indian Ocean tsunami, and was later made available as part of the paperback edition of "The Road to Dune".  "Dune: Treasure in the Sand" was published online in 2006 at Jim Baen's Universe, and was later made available as part of the paperback edition of "Hunters of Dune".  "Dune: Wedding Silk" was released June 12, 2011 in the "Dune" e-book short story collection "Tales of Dune", which also included previously published stories "Dune: Sea Child" and "Dune: Treasure in the Sand."  "Dune: Red Plague" was released on November 1, 2016.

Supporting paragraphs: Olga Peretyatko Mariinsky Theatre
Answer: 1860